Trying to conceive with Subclinical hypothyroid... - Thyroid UK

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Trying to conceive with Subclinical hypothyroidism

Nat2021 profile image
41 Replies

Hello

I have been trying to conceive for 8 months. I was concerned something was wrong and requested blood tests from GP. I received my results which indicate my TSH Is 5.5 and T4 is 13.2.

My GP advised my TSH is slightly elevated and spoke to a consultant who advised they wouldn't treat and that it shouldn't stop me getting pregnant.

After doing some reading the British Thyroid Association and other websites they state TSH should be 2.5 or lower when trying to conceive and when pregnant to avoid complications.

I am considering going private to see a endocrinologist as i just don't feel comfortable trying to get pregnant and putting myself at risk.

Does Anyone have any experience/thoughts?

Thanks

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Nat2021
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SeasideSusie profile image
SeasideSusieRemembering

After doing some reading the British Thyroid Association and other websites they state TSH should be 2.5 or lower when trying to conceive and when pregnant to avoid complications.

Before going to the expense of seeing a private endo, print out everything you can find about where TSH should be for conception and pregnancy, including the above, and ask your GP why he is not following this guidance and why the consultant he spoke to is also ignoring it and risking you suffering a miscarriage if you did manage to get pregnant.

There is some information on ThyroidUK's main website which you may find useful:

thyroiduk.org/having-a-baby/

SlowDragon profile image
SlowDragonAdministrator

Welcome to the forum

Yes TSH should be under 2.5 for conception

Extremely important to test thyroid antibodies and vitamin levels too

Is there any autoimmune disease in your close family

For full Thyroid evaluation you need TSH, FT4 and FT3 plus both TPO and TG thyroid antibodies tested.

Very important to test vitamin D, folate, ferritin and B12 at least once year minimum

So first step is to get full thyroid and vitamin testing done before considering booking any consultation with thyroid specialist endocrinologist

If TPO or TG thyroid antibodies are high this is usually due to Hashimoto’s (commonly known in UK as autoimmune thyroid disease).

About 90% of all primary hypothyroidism in Uk is due to Hashimoto’s.

Low vitamin levels are particularly common with Hashimoto’s.

Autoimmune thyroid disease with goitre is Hashimoto’s

Autoimmune thyroid disease without goitre is Ord’s thyroiditis.

Both are autoimmune and generally called Hashimoto’s.

In U.K. medics never call it Hashimoto’s, just autoimmune thyroid disease (and they usually ignore the autoimmune aspect)

Recommended on here that all thyroid blood tests should ideally be done as early as possible in morning and before eating or drinking anything other than water

This gives highest TSH, lowest FT4 and most consistent results. (Patient to patient tip)

Private tests are available as NHS currently rarely tests both antibodies, Ft3 or all relevant vitamins

List of private testing options

thyroiduk.org/getting-a-dia...

Medichecks Thyroid plus antibodies and vitamins

medichecks.com/products/adv...

Blue Horizon Thyroid Premium Gold includes antibodies, cortisol and vitamins

bluehorizonbloodtests.co.uk...

If you can get GP to test vitamins and antibodies then cheapest option for just TSH, FT4 and FT3

£29 (via NHS private service ) and 10% off down to £26.10 if go on thyroid uk for code

thyroiduk.org/getting-a-dia...

monitormyhealth.org.uk/

NHS easy postal kit vitamin D test £29 via

vitamindtest.org.uk

Link about thyroid blood tests

thyroiduk.org/getting-a-dia...

Link about Hashimoto’s

thyroiduk.org/hypothyroid-b...

List of hypothyroid symptoms

thyroiduk.org/if-you-are-un...

Come back with new post once you get FULL thyroid and vitamin testing results

Meanwhile

Email Thyroid UK for list of recommended thyroid specialist endocrinologists...NHS and Private

tukadmin@thyroiduk.org

Roughly where in U.K. are you

Before TTC thyroid levels need to be stable

verywellhealth.com/infertil...

Pregnancy guidelines

thyroiduk.org/having-a-baby-2/

gp-update.co.uk/files/docs/...

Important, when on levothyroxine….See pages 7&8

btf-thyroid.org/Handlers/Do...

thyroidpharmacist.com/artic...

Nat2021 profile image
Nat2021 in reply toSlowDragon

Thanks so much for all this info.

I have ordered full thyroid test from medicheck hopefully arrive tomorrow.

I am at the point now where i just want to go private and get it sorted asap! I really don't want to wait round for a referral and have to fight my corner i would rather just pay and be seen next week.

After 8 months of ttc and at the age of 34 i just want to have a family.

Really disappointed my GP fobbed me off.

SlowDragon profile image
SlowDragonAdministrator in reply toNat2021

Only do test early on Monday or Tuesday morning and then post back via tracked postal service

Don’t test if weather is freezing or snowy

If taking any supplements that contain biotin (eg vitamin B complex) stop these a week before test as biotin can falsely affect test results (it’s used in some labs testing kits)

Are you currently taking any vitamin supplements?

Nat2021 profile image
Nat2021 in reply toSlowDragon

I am taking:

2000iui vit D

500mg vit c

800 vit E

A multi vit pre-natal

DHEA

SlowDragon profile image
SlowDragonAdministrator in reply toNat2021

If prenatal has biotin stop this 5-7 days before test

Have you tested DHEA before supplementing

Nat2021 profile image
Nat2021 in reply toSlowDragon

I will check my pre natal and no i havent been tested for DHEA i read it can help egg quality due to my age (34)

SlowDragon profile image
SlowDragonAdministrator in reply toNat2021

Vast majority of endocrinologists are diabetes specialists

You only want a thyroid specialist ideally

Thyroid U.K. office reopens on jan 4th email for list of recommended thyroid specialist endocrinologists then

Nat2021 profile image
Nat2021 in reply toSlowDragon

Spoke to a different GP this morning and he advised that the GP i spoke to on Wednesday had spoke to an endo consultant who advised for another blood test in 3 months and that my TSH at 5.5 was only slightly over?

Am i over analysing? Everything i read online is very clear that TSH should be below 2.5 and how a higher TSH can impair fertility and increase risk of miscarriage.

I dont really want to wait round another 3 months for next blood test nor do i want to risk a miscarriage if i am lucky enough to fall pregnant.

I have booked a private endo appointment week after next to get to bottom of things.

Thanks for your help

SlowDragon profile image
SlowDragonAdministrator in reply toNat2021

Strongly recommend getting full thyroid and vitamin testing done BEFORE consultation

If you order test now and do it Monday 10th …..should have results by Wednesday 12th, possibly Thursday 13th

ESSENTIAL To test thyroid antibodies and vitamins plus Ft3

It’s absolutely standard practice to retest bloods 6-8 weeks after a 1st abnormal test result, before starting on levothyroxine.

Nat2021 profile image
Nat2021 in reply toSlowDragon

My medicheck testing kit came today so i will do it Tuesday morning and send Tuesday afternoon.

I understand i may not be put on medication straight away but it will be good to have a conversation with a specialist about cause of action moving forward.

SlowDragon profile image
SlowDragonAdministrator in reply toNat2021

Come back with new post once you get results

SlowDragon profile image
SlowDragonAdministrator in reply toNat2021

You could test this Wednesday and pay for 24 hour delivery to Medichecks

OudMood profile image
OudMood in reply toNat2021

Nat2021, you might also want to note that NICE guidelines recommend Levothyroxine trial after 2 (6-8 weeks apart I believe) results have elevated TSH while TTC.

I’d recommend repeating the private test and see how the TSH can be lowered to 2.5 or less.

It usually improves chances of conception (if no other impediments are present) once TSH is closer to Euthyroid of 1.

SeasideSusie profile image
SeasideSusieRemembering in reply toNat2021

Nat2021

In the event of your Medichecks kit arriving tomorrow, please don't do your test on Monday 3rd January, Royal Mail aren't collecting on Monday as it's officially a bank holiday due to New Year's Day falling on Saturday.

jimh111 profile image
jimh111

The advice for TSH < 2.5 in the first trimester and < 3.0 for second and third trimester applies to those with diagnosed primary hypothyroidism. This is different for women with a healthy thyroid which will be able to respond to slightly elevated TSH and maintain healthy T3, T4 levels. The research that underlies these recommendations is carried out in women who have known thyroid failure. The BTA advice applies to women with diagnosed hypothyroidism btf-thyroid.org/thyroid-dis... which they define as a low fT4 or TSH > 10. So, your GP is following guidance.

However, I have heard of a number of women (I'm not a doctor) who have become pregnant after treating numbers like yours. If I were female and pregnant I would at least keep a very close eye on my fT4 during the early stages of pregnancy. I'm assuming your fT4 is borderline although you don't give the reference intervals for your blood test.

I would get TSH, fT3 and fT4 measured just to see whether fT3 is also low normal. This blood test may by chance show a lower fT4 and let you jump through the hoop. If you still don't get pregnant with similar TSH, fT4 it makes perfect sense to trial some levothyroxine to bring your TSH down - this would be far simpler and cheaper than extensive investigations into why you do not achieve pregnancy.

Nat2021 profile image
Nat2021 in reply tojimh111

Thank you for help

I am very new to all this so all very confusing.

So would you suggest that my levels look ok? I am very confused.

jimh111 profile image
jimh111 in reply toNat2021

Your levels MIGHT be OK, they might not. It makes sense to have another blood test as levels can change. It also makes sense to trial some levothyroxine as it is safe and cheap. You could trial slowly coming off the levothyroxine a few months after delivery.

It is difficult to get doctors to prescribe levothyroxine - not least because a diagnosis of hypothyroidism entitles you to free prescriptions. However, there is a study that showed that TSH is much higher mid-cycle frontiersin.org/articles/10... . So, you do a cheap private blood test and time it so that you get the best chance of having a high TSH. (You don't need to read the research study, I just include it for reference).

Nat2021 profile image
Nat2021 in reply tojimh111

Thanks for this info

Could you advise on my T4 levels? My blood tests indicate they are in normal range but what is optimal?

jimh111 profile image
jimh111 in reply toNat2021

The body acts to defend serum fT3 levels so an fT4 like yours would be OK if your fT£ was around mid-interval. However, I don't know of any research which has been done to establish appropriate fT3, fT4, TSH for 'healthy' women planning pregnancy. There are cases of women with numbers like yours who fail to achieve pregnancy for a long time and only become pregnant with some levothyroxine. It makes sense to give it a try, but I'd get a cheap private test done first.

Nat2021 profile image
Nat2021 in reply tojimh111

Thank you - you mean get a full thyroid check,? I have ordered a medicheck kit this morning.

jimh111 profile image
jimh111 in reply toNat2021

yes, the Medichecks will be fine. I would wait until the New Year (avoid postal delays) and time it mid-cycle (whatever that means!!!).

Nat2021 profile image
Nat2021 in reply tojimh111

Spoke to a different GP this morning and he advised that the GP i spoke to on Wednesday had spoke to an endo consultant who advised for another blood test in 3 months and that my TSH at 5.5 was only slightly over?

Am i over analysing? Everything i read online is very clear that TSH should be below 2.5 and how a higher TSH can impair fertility and increase risk of miscarriage.

I dont really want to wait round another 3 months for next blood test nor do i want to risk a miscarriage if i am lucky enough to fall pregnant.

I have booked a private endo appointment week after next to get to bottom of things.

Thanks for your help

jimh111 profile image
jimh111 in reply toNat2021

I've only glanced at studies and they have inconclusive results, some suggest levothyroxine helps and some conclude it can make it worse. It seems reasonable to try levothyroxine if you haven't succeeded without it

SlowDragon profile image
SlowDragonAdministrator

TSH Is 5.5 and T4 is 13.2

Was this test done as early as possible in morning before eating or drinking anything other than water

This gives highest TSH

With TSH over 5 bloods should be retested by GP in 6-8 weeks

2 tests with TSH over 5 (even if not TTC) should be/could be started on levothyroxine

See flow charts and text on here

gp-update.co.uk/Latest-Upda...

Nat2021 profile image
Nat2021 in reply toSlowDragon

Hi yes test done early morning before food/drink

RedFox23 profile image
RedFox23

Hi Nat, we’re TTC too but not having any luck. My blood tests showed an elevated TSH, it was in the 20s! The Dr started me on levothyroxine to bring it down as he said it can cause miscarriage. They tested my anti bodies too and these are really high, as far as I’m aware this can lead to issues with pregnancy too.

We’re under an IVF clinic at the moment and they won’t start treatment under my thyroid is stable and between 1 and 2. Xx

Nat2021 profile image
Nat2021 in reply toRedFox23

Hi Redfox

Its so frustrating isnt it, i just want it sorting as i feel hopeless and each month gets harder. Im glad i got things checked rather than waiting until the 12 month mark.

I have ordered an at home test to measure full thyroid panel and will be booking a private appointment tomorrow.

Has the medication brought it down much?

RedFox23 profile image
RedFox23 in reply toNat2021

You’re so right for checking things out early. We waited for years until talking to our doctor and then waited for months to see a fertility consultant and then months and months of tests!!!

The medication bought it down quickly. My TSH was 24 in May 2021 and after starting meds, 6-8 weeks later it was 2.7. The GP said that 2.7 was within range however on being tested at the IVF clinic they said this was too high for conception.

So the IVF clinic wrote to my doctors to tell them to increase my dose!

So my GP upped my meds and 6-8 weeks later I was retested and now my TSH is 0.1 which is now too low!

It takes a bit of tweaking to get the level right I think but it’ll all be worth it in the end! Xx

FancyPants54 profile image
FancyPants54 in reply toRedFox23

0.1 is not too low. They might bleat about it. But it's not too low.

Nat2021 profile image
Nat2021 in reply toRedFox23

Oh wow that brought it down drastically! This is all so new to me and i have a lot to learn.

I know my levels dont seem drastically high but i cant help but worry its impacting my chances and i am fixer by nature so need to know how/if it can be improved. I am hoping a private consultant will see my results and prescribe me meds and its just a matter of that, if not least i know my levels are normal and its one less thing it could be.

Really hope you get things sorted soon. If the clinic are saying levels need to be lower than 2.7 then surely mine arent in the place they should be whilst TTC!

Did you have any symptoms x

RedFox23 profile image
RedFox23 in reply toNat2021

I did have a few symptoms but didn’t realise at the time. I was, and still am, often tired but I thought that was just a normal way to feel. My hands and feet are always cold and I have a really bad memory. I didn’t know anything about hypothyroidism until I started reading into it. This forum is really good for info and advice.

Wishing you all the best with your thyroid / fertility journey! If there’s any other questions feel free to PM me anytime xxx

SlowDragon profile image
SlowDragonAdministrator in reply toRedFox23

RedFox23

How much levothyroxine are you currently taking

Do you always get same brand levothyroxine at each prescription

Suggest you retest in another 6-8 weeks

Just testing TSH is completely inadequate

ALWAYS Test as early as possible in morning before eating or drinking anything other than water and last dose levothyroxine 24 hours before test

What vitamin supplements are you currently taking

Have you had thyroid antibodies tested

RedFox23 profile image
RedFox23 in reply toSlowDragon

At the moment I am alternating 75mg one day, 100mg the next. I take Vit D, magnesium and B12 supplements daily, plus coq 10.

I had bloods checked mid December and am due for them to be checked, in clinic, the last week of Jan.

I’m being referred to an endocrinologist too, a thyroid specialist, as although my results seem okay to the Dr, I do have symptoms.

TSH 0.1 ( 0.35 - 4.94)

T4 19 ( 9 - 20)

T3 4.3 ( 2.4 - 6)

My TPO antibodies were over the upper limit, over 600.

I’m to start a gluten free diet as of New Year in the hopes that brings down my anti bodies!

SlowDragon profile image
SlowDragonAdministrator in reply toRedFox23

Have you had vitamin D, folate, ferritin and B12 tested

Ft3 still lowish

Good you’re starting on strictly gluten free diet

Have you had coeliac blood test done BEFORE cutting gluten out

RedFox23 profile image
RedFox23 in reply toSlowDragon

No recent vitamin tests, I must order a test! I’ve seen the links above.

I haven’t had a gluten test either actually. I will do this before I change my diet. Thanks for the recommendations. I have found this group so useful! 😊

shaws profile image
shawsAdministrator

This is a link from 'Stopthethyroidmadness' a site in the USA.

stopthethyroidmadness.com/p...

Ziburu profile image
Ziburu

Hi NatI had my daughter 18, eventually after much heartache.

With Hashimoto's I was just not conceiving.

I should’ve been offered IVF on NHS but GP cocked that up and then I was 40, which was too old. I went for private IVF which happily worked first time at 42!

It never worked again though, despite, numerous attempts and spending a fortune.

Vitamins, D3 and B12 I’d recommend are by Better You - in liquid form they’re supposed to be more easily absorbed.

If you’re seeing an endocrinologist look for one that specialises in fertility. As we know there are endos and endos and not all are equally sympathetic or competent. Good luck🍀🍀🍀

Nat2021 profile image
Nat2021 in reply toZiburu

Hello 😊

Thank you for your advice.

Did you ever get prescribed medication?

Do you know much about TSH and Free T4? I am reading that DRS arent really to concerned if TSH is elevated but T4 is in normal range, however my T4 is normal range but on lower end.

I just want to go to my appointment well informed

Ziburu profile image
Ziburu

I was on levothyroxine at the time. Not sure my numbers sorry.I never really got on with though I think. Took it for years then more recently got prescribed T3 which I prefer.

All I can say is I’m sure there’s more knowledge now. No web then!!!

Do gluten free, dairy free and cut sugar. But don’t go onto diet stuff because that’s much worse saccharine, aspartame really not good for you at all.

Read up The Thyroid Pharmacist - she is super informative. 👍🍀👍

Ziburu profile image
Ziburu

Hi NatSorry for delay.

I got snowed under with emails.

Hope you’re doing good though.

Only extra info I can add that might be useful re conceiving is the following…

I dont really take much notice of my numbers unless I don’t feel well. (Super down or manic and cannot sleep) with Hashimotos your thyroid can be under or overactive.

As I take T3 my TSH is suppressed I think? But that’s normal with T3. Anyway after giving up on Levo I take 25 mcg of T3 which seems to do me fine.

Re conceiving, any probs I’d try and get referred to a endo specialising in fertility.

I had probs and had IVF at 42 and it worked first time. Previous to that I tried so much stuff (getting hair tested for toxins, cutting out so many foods)

They will usually bump up your Levo if you’re pregnant. Not sure if they increase it for trying to conceive.

That’s all I can think of for now

Let me know how you get on. Fingers crossed you’re already expecting🐣Happy Easter

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