Q. Would hypothyroidism affect my pregnancy?

Answered by
Dr. Shaikh Sadaf
and medically reviewed by Dr.Sowmiya
This is a premium question & answer published on Nov 27, 2017 and last reviewed on: Aug 22, 2022

Hello doctor,

I am a 30-year-old female. I am planning for pregnancy. Recently, a thyroid profile shows the TSH at 1.95 mIU/L, T4 at 13.9 mcg/dL, and T3 at 113 ng/dL. I am on Eltroxin 100 mcg and Folic acid. Please advice.



Welcome to

I just read your query, and from what you have mentioned, you have hypothyroidism (an underactive thyroid disease). From the reports (attachment removed to protect patient identity) you have mentioned, hypothyroidism seems to be well controlled. I suggest that you continue with the same dose of Levothyroxine tablet until you conceive, and once you are pregnant, you can repeat the same tests, and we can manage your dose accordingly.

Wish you good luck and hope you found my advice beneficial.

Hi doctor,

Thanks for your reply. I have a doubt here. My T4 level is a bit high. Is that fine? Will this thyroid condition affect my pregnancy?



Welcome back to

As long as your TSH (thyroid-stimulating hormone) is within the normal range, the T4 level is not considered as it is a variable component, and it keeps changing throughout the day. Also, we need this level of TSH for a normal pregnancy if you get pregnant, hopefully. That is why I asked you to repeat your thyroid function tests immediately after getting pregnant to avoid any complications. If your TSH is within the normal range, nothing wrong will happen. So, do not worry. Many women with thyroid conditions get pregnant and have normal babies as long as they are on treatment and proper follow-up.

Hope I have answered your concerns. Good luck.

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