Need advice !!

So I have no friends honestly and I need a advice ..I’ve always been irregular with my periods it’s really bad sometimes it’s like 8 months apart and I’ve been checked on my ovaries to see if I have something going on but they didn’t find anything and so they started me on birth control to regulate my periods and it worked ..after a year I got pregnant and when I had her I started again with my irregular periods and I’ve been trying to get pregnant for the past 2 years and nothing ..I just want to know what I could do ?? Is anyone going through this I need someone to talk to it’s making me depressed !!