High TSH during 1st trimester

[do40]

am 5 weeks pregnant, just done my Thyroid test and found out my Free T3 is 2.5 pg/ml and Free T4 is 1.7 ng/dl and TSH is 17.7ulu/ml, which is relatively high (hypothyroiditis). I am on Eltroxin a dose of 150/ day for 2 years now since my thyroid operation, my doctor increased the dose to 200 per day after these readings, hopefuly number goes down in my next test.
my question, isn't too late? I mean working on adjusting the levels and watching it after the first 5 weeks (esspecially i read that 1st trimester is the most important one), isn't too late?

I afraid i have challenegs or risks transfered to my baby, especially after reading scary threads about this

[do40]

hi Dr. Prasad, today I almost completed my 9th week of pregnancy. 4 weeks ago my TSH was 17 and FT4 is 1.8. now, the TSH went down but still high; it is 8.27 and my FT4 1.5, my doctor increased the dose in a very strange alternate manner to 250 one day and 200 the next day.
My concern is the fetus and its health and development, is he taking his dose from the medication, what if the 1st trimester passed and my TSH remained high. I am always hearing that since I am under medication with close monitoring no matter the reading me and my baby are fine.
Please let me know if there is any risk on the baby development.

[do40]

Dear Dr. Lupo,

We have done the Thyroid tests after 4 weeks from the above and I am in the 9th weeks now, the TSH went down but still high; it is 8.27 and my FT4 1.5, my doctor increased the dose in a very strange alternate manner to 250 one day and 200 the next day.
My concern is the fetus and its health and development, is he taking his dose from the medication, what if the 1st trimester passed and my TSH remained high. I am always hearing that since I am under medication with close monitoring no matter the reading me and my baby are fine.
Please let me know if there is any risk on the baby development.

[do40]

Thank you very much, appreciated

[Mark Lupo, M.D.]

No - it's not too late and the dose increase is appropriate. The overall risk is still very low for problems with the baby, but careful monitoring (as is planned) of the thyroid treatment is essential.