I'm now 8-9 weeks pregnant and so far had great support from my local GP and midwife service making sure I get regular thyroid function tests and they referred me to the endocrinologist.
Without meeting me the consultant at the hospital has phoned my GP and basically ordered her to switch me from NDT to Levothyroxine. The GP doesn't have much thyroid experience, and clearly admitted this, so was basically just passing on the message. I pointed out that I struggled with Levo for about three years. I never felt well on it and some symptoms were worse. My latest lab results TSH was at the low end of normal (can't find where I wrote them down now) and T4 was just under normal range. At which point I increased my dose of NDT and I have another appointment for Thyroid function test next week.
The GP explained that T3 does not cross the placenta to the growing baby and when taking NDT that lowers the amount of available T4. She said the consultant said I need to be taking at least 125mcg Levo daily at this stage in pregnancy. I asked her why I would need to increase if my T4 is in the normal range. Or if I could supplement the NDT with a low dose of Levo. After calling the consultant back she was unable to answer and just said that the consultant said that 'this was not an option' and I am 'to switch as soon as possible'
I am sure that women use NDT throughout their pregnancies, particularly in countries where it is prescribed, so just wanting to know what are the best ranges of TSH, T4 and T3 for pregnancy when taking NDT? Does anyone have direct experience of taking NDT through pregnancy? Has anyone combined NDT and Levo to slightly increase T4?