TTC our fist child. Possible hypothyroidism, no period for 3 months, taking progesterone tablets. So many questions please help!

My husband and I have been ttc for three months now. I haven't had a period since stopping birth control three months ago. My doctor prescribed me progesterone tablets to take for 5 days to get my period back. Will this make me ovulate? If so when should I take a pregnancy test? Also I suspect I have hypothyroidism and I'm waiting on blood work, any one else who has it, how long did it take u to get pregnant and what are the risks? Any info on hypothyroidism or random thoughts/symptoms appreciated.