Thyroid UK
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just diagnosed and trying for a baby


I have just been diagnosed with an under active thyroid by my GP and i am 31 years old, my TSH was 6.4.,and my T4 was 14.

when it was last checked 4 months ago my TSH was 4. I don't understand how it has increased so much?

I attended as i have not had a period for 4 months, and we are trying for a baby.

i feel very anxious about everything now, and hoping that this will help my cycles return to normal. I have been put on 25mcg of levothyroxine, and have to return for a blood test in 6-8 weeks.

feeling worried.

4 Replies

The above link takes you to over 2000 posts previously on this Forum concerning pregnancy. Am sure you will find loads of relevant and helpful information. The website Hypothyroidmom also has good information - from memory :-)

Please also ask for Thyroid anti-bodies to be checked to rule out Hashimotos. Also check B12 - folate - Ferritin - VitD - to ensure your thyroid hormones work well and for your wellbeing :-)

Try not to worry .... lots of support here from so many.

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Thanks for your quick response. I will have a look at that link, and will speak to my GP about the other tests.

Thanks for the reasurrance.

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So you have started on a tiny dose. Standard starter dose is 50mcg. Bloods should be retested after 6-8 weeks. Dose increased in 25mcg steps until TSH is around one and FT4 towards top of range and FT3 at least half way in range

Essential to know if you have high thyroid antibodies, this is Hashimoto's also called autoimmune thyroid disease

Low vitamins are common

For full evaluation you ideally need TSH, FT4, FT3, TT4, TPO and TG antibodies, plus vitamin D, folate, ferritin and B12 tested

See if you can get full thyroid and vitamin testing from GP. Unlikely to get FT3

Private tests are available and hundreds on here use them

Medichecks Thyroid plus ultra vitamin or Blue Horizon Thyroid plus eleven are the most popular choice. DIY finger prick test or option to pay extra for private blood draw. Both companies often have money off offers.

All thyroid tests should be done as early as possible in morning and fasting and don't take Levo in the 24 hours prior to test, delay and take straight after. This gives highest TSH, lowest FT4 and most consistent results

Link about antibodies

Link about thyroid blood tests

list of symptoms

For pregnancy NICE guidelines recommend TSH below 2.5

If you have Hashimoto's you will probably need it lower than that to feel better

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Wow, Thank you very much! Lots of advice in such a short space of time, cant believe it. I will look into all of this.

Great group.

Thanks again.


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