Pregnant...now what? Hypothyroidism: I had three... - Thyroid UK

Thyroid UK

137,781 members161,590 posts

Pregnant...now what? Hypothyroidism

Aloha79 profile image
13 Replies

I had three chemical pregnancies last year, after which it was noted that my TSH was around 4/4.5 (other thyroid counts normal/optimal, TPO also optimal) and had been for quite some time.

Levels normalised to 1.5 on 50mg and after 3 months I now have a positive pregnancy test. The Thyroid Clinic at the maternity hospital seems to think I should stay on 50mg. I understood I should increase the dose by 50% to 75mg?

Thank you!

Written by
Aloha79 profile image
Aloha79
To view profiles and participate in discussions please or .
Read more about...
13 Replies
humanbean profile image
humanbean

cks.nice.org.uk/hypothyroid...

In the above link, the last sentence in the text says :

Women with known thyroid dysfunction who are taking levothyroxine may need the dose increased by 30–50% from as early as 4–6 weeks gestation [De Groot et al, 2012].

How do you feel now, compared to before starting on Levo?

In your shoes I would suggest getting your nutrients tested - iron, ferritin, vitamin B12, folate, vitamin D. It is very common for these to be low in people who are hypothyroid, pregnant or not. Do some research into possible effects of low levels of nutrients in pregnancy. Low levels are best avoided to maximise your own health and that of the foetus.

Note that optimal levels of nutrients aren't always mid-range or top of range - it really depends on the nutrient being investigated, although if I have no other information to go on I would always aim for mid-range with any nutrient.

Ask the receptionists at your surgery for copies of blood test results and reference ranges from the last couple of years to see what your doctor has tested.

Aloha79 profile image
Aloha79 in reply to humanbean

Thank you - I am not in the UK so cannot open the link but your quote is useful.

I am having my bloods taken regularly, full count, at 4 weeks pregnant all was ok. I will be retested at 8 weeks.

I feel fine. I am self medicating with 25mg extra anyway.

I was on NaturThyroid for one month in December and my levels then were better than ever, but the consultant pointed out the levels in NaturThyroid cannot be guaranteed and so switched me back to Levo.

humanbean profile image
humanbean in reply to Aloha79

The bit I quoted has the following source/reference which you might find of interest :

Management of Thyroid Dysfunction during Pregnancy and Postpartum: An Endocrine Society Clinical Practice Guideline

academic.oup.com/jcem/artic...

Your consultant was wrong about NaturThyroid being unreliable. Thyroid treatments that use pig thyroid have been regulated by the FDA for decades, just like all other prescription-only drugs, medications and hormones, and the regulations for how much T4 and T3 they contain can be found in the US Pharmacopeia.

en.wikipedia.org/wiki/Unite...

usp.org/

Pig thyroid treatments may have been unreliable at one time - decades ago - but the pharmaceutical companies are keeping this propaganda alive for their own purposes. The medical profession likes Levo so they never do anything to debunk the idea. I'm sure quite a few doctors believe it completely as well.

jjf255 profile image
jjf255 in reply to Aloha79

Your consultant doesn't know what they are talking about to say that levels in Nature throid can't be guaranteed. This is very OLD thinking. If your numbers were good on it, I'd insist that they keep you on it. Sorry...so called medical professionals that say these stupid things just make me crazy!

Aloha79 profile image
Aloha79 in reply to jjf255

To be honest, my T3 shot up to levels way above optimal and normal ranges, which is what caught his attention.

jjf255 profile image
jjf255 in reply to Aloha79

Oh, you said your numbers in December were better then ever on Naturethroid. If your T3 was over range, all the consultant needed to do was lower your Naturethroid a bit. Then check it again with your next blood work.

Aloha79 profile image
Aloha79 in reply to jjf255

Hi, I was placed on NT in December. My levels were good already (optimal) and continuted to be even more optimal on NT! Then the T3 went too high.

I am very fortunate in the country I live in, with specialist endo care within each maternity hospital, and GPs who will do full BC whenever requested, so really my question was to check the NICE guidelines ahead of my next appointment. Thank you all, I am more confident on where I am going now.

Lora7again profile image
Lora7again

I think you need to be under a specialist who can look after you during your pregnancy. Which country are you in?

Aloha79 profile image
Aloha79 in reply to Lora7again

I'm in Ireland. I saw the consultant endocrinologist at the Thyroid Clinic in the maternity hospital at 5 weeks. My GP tested everything (full blood count) at 4 weeks. I will be tested again at 8 weeks.

The consultant endo was confident I could remain on 50mg levo, but I have since read on here I should increase that in early pregnancy.

Lora7again profile image
Lora7again in reply to Aloha79

That is quite a low dose, I would do as much research as you can.

Here is a link which might help

btf-thyroid.org/thyroid-dis...

Aloha79 profile image
Aloha79 in reply to Lora7again

Thank you. I will simply go on self-medicating the recommended 25mg extra, as per your link, and see what the next bloods say. I am fortunate in that I needed very little levo to bring my levels to optimal.

SlowDragon profile image
SlowDragonAdministrator in reply to Aloha79

Pregnancy guidelines

thyroiduk.org.uk/tuk/about_...

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

thyroiduk.org.uk/tuk/guidel...

See pages 7&8 - clear advice to increase dose as soon as pregnancy is confirmed

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

DogLover518 profile image
DogLover518 in reply to Aloha79

I would trust the dr. You will DEFINITELY know when your levels are off and you and baby need more. I started feeling crazy about 6/7 weeks and called my dr. We re-tested and I was around 13. The dr. adjusted my meds right away. Test as frequently as they allow. Be your own advocate! You’ve got this! You know your body.

You may also like...

Hypothyroidism and pregnant

then started on armour thyroid but it hasn't helped my blood levels. My thyroid is still low. And...

Hypothyroid and pregnant

grain. Not sure what I should be doing about dosing. I need to get some T3 as levels were low....

Hypothyroid and pregnant

45kg. My TSH is currently 7.10 (0.2 - 4.2) Free T4 12.2 (12 - 22) Free T3 3.7 (3.1 - 6.8) TPO...

pregnant with hypothyroidism need advice

have a thyroid didfucntion since birth. Managed with leveothyroxine, two previous pregnancies...

What else causes hypothyroidism?

Haven't had children. - Have not had thyroid surgery or been treated for over active thyroid. - Have