Early 20’s TTC: hyperthyroidism and Graves’ disease

My husband and I have been married for over a year. I have a hyperactive thyroid also Graves’ disease and my doctor advised me not to get pregnant. About 6 months ago he finally gave me the ok to get pregnant, we’ve been ttc for about 4 months now without any luck, I’m wondering if anybody has had the same and how long it took you to get pregnant?