period stopped under active thyroid

I was diagnosed recently with an underactive thyroid. I'm on day 125 of my cycle due to missing 3 periods which I usually get every 33 days. I am on 25mg of thyroxine and have been for 2-3 weeks now. I was just wondering if anyone else's periods stopped with a thyroid problem? And how long it took you to ovulate/have a period again? Been ttc for 7-8 months for my first baby. I'm only age 26.