Hello and thanks for posting your query on HCM
Abnormalities of thyroid hormones affect the pregnancy
, however the effect is most prounced in the first trimester i.e. during first 12 week of pregnancy during which organogenesis takes.
I agree woith your doctor to increase the dosage of thyroid hormone.
I advice you to closely monitor your thyroid function tests
and get it repeated at regular intervals.
It is alright for now to increase the dose.
Thanks and take care