TTC with irregular periods

Tiffany

I have been TTC for 6 months now. I have always had irregular periods my whole life. I was put on BC at the 13 due to my doctor thought I had endometriosis. I have been off BC snice I was 19 and I am now 21 about to be 22. The first month of trying I had all the sign of being prego but had a BFN. My mother said that she didn't have a positive on a test till she was 4 months in.. What are things I could do to help me get a pregnant? I'm starting to run out of hope.