Hey marcellus! I'm not actually ttc yet either, just trying to get myself in the best possible health for it WELCOME! My sister has PCOS but she also has Endo and is perimenopausal just now. I'll ask her about the Pill as a possibility. I think she's not allowed it because she is medicated for her high BP and is at increased risk of thrombosis and stroke due to inactivity (due to her weight) and her BP. THanks for the tip though!

Hi Shoegal! Welcome! Underactive is hypo (think hypothermia - not warm enough). Some people do lose weight when they commence thyroxine but usually weight gain due purely to the thyroid is modest (5-10kg at most). The main problem with the hypoactive thyroid is that you feel so lacking in energy you tend to DO less. So while it is true that i lost weight when medicated, i would put it down to the fact that i could run more often, for longer, and faster once i was medicated. And if i overeat, medication or not, i gain weight!

Bx