Thyroid UK
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Antithyroid peroxidase antibodies and pregnancy

Hello all, I am 13 weeks pregnant. It has been a very long journey to get here due to thyroid and very high antithyroid antibodies (>1300.) I was treated with steroids to suppress my immune system which appeared to do the trick and I have just weaned off them.

I am now wondering what my antithyroid antibodies reading is and if it is high still whether that will have an effect on my pregnancy. I wondered if anyone could help or had any reading/links that might be helpful.

To be honest I am scared stiff that something is going to go wrong! Prior to getting pregnant I took Selenium 200mg and gave up gluten (am still gluten free) so this could have had an impact on my levels.

Any info gratefully received!

4 Replies

Just to add...I am under a consultant endocrinologist and my TSH levels are currently stable.


I cannot comment specifically regarding your question and anti thyroid antibodies . But when I was pregnant my midwife referred me to an Endocrine Obstetrician consultant at the hospital to monitor my thyroid levels. Are you taking Levo? Not sure what meds you are on. I was on 50 Levo and as soon as I discovered I was pregnant I had my dose increased immediately and then by the end of my 9mrhs term I was on 150 Levo. Not sure if it helps you but that was the situation for me.



My thyroid antibodies were>1000 and I took steroids for the first trimester. My pregnancy was successful and I had no idea what the antibody numbers were as I wasn't tested again. I did test positive for Trabs too, and my baby was tested for thyroid problems at birth and all was fine. Try not to worry. Good luck


Thanks so much for your responses, Wombletor you don't know how good it is to hear your news, have been worrying like mad! Glad to hear you have a healthy baby and all is well!


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