Off bc, irregular and TTC. HELPP!!!

I been TTC for about 3 years now, I don’t drink, don’t do drugs, I don’t drink any caffeine and don’t have any medical conditions. I have had no luck. I’m irregular and I started birth control to regulate my cycle on September 18 of 2016 and ended on March 4 of 2017 to regulate my period but it was still irregular after taking Junel Fe 1/20, then I tried birth control again “sprintec this time” on May 28 of 2017 and ended it on September 16, 2017 , which sept. 17, 2017 was the last time I got my period and i haven’t gotten my period since then. Any advice on what I can do whether to get my period or to get pregnant? My doctor said my eggs are fine and I can have babies, just that I need to keep trying but it’s so difficult !!!

Ps. It says my next period starts on feb.12, but I highly doubt it