Hypothyroid during early pregnancy

[Suhanya]

Hi,

I am pregnant and now 8 weeks. I have been hypothyroid for a few years and have been under medication. 10 months back I had my first pregnancy. As a usual routine I checked my TSH level and saw a shocking value of 7.2. Never before had by TSH gone up so high. The doc checked my dosage level. Unfortunately the pregnancy did not sustain and got terminated by itself in the 6th week. Not sure whether TSH was also a reason for the miscarriage.

After that, I was very cautios and continued my medicines very sincerely. I did not plan for pregnancy until the level was brought slightly below 5 and within range. There was no issue in getting conceived and I was pregnant the very next month. Now in my 8th week i see that my TSH value has risen to 5.1 again. I am still on medication. But reading alot of articles about the permissable level of TSH in pregnancy and that it should be less than 3 is worrying me alot.

More than half of my first trimester is over and with this TSH value, would it have already impacted the baby inside? is there a high possibility of going into miscarriage in my 2nd trimester? It is really worrying me alot, particularly because of the traumatic first experience in having a miscarriage.

Can you please let me know?