Need help!!!

Evie

So this is my first time ever posting. I just downloaded this because my husband and I have been trying but not trying for almost 3 years. I’ve been off an on b.c but not long enough to really do much. I had a little girl back in November 2016 (he’s not the father, knows but doesn’t care) after I had her I went on neplexlnon (misspelled) for 3 months, then went to mirena and it fell out about 3 months later as well. I was off b.c for a while and then went on the pill for 2 months January- March this year. I’ve never had regular period except when I was on the pill. I stopped so we could keep trying. Here it is almost September and no baby. We were curious if maybe it was him because I’ve had kids and he never has. Turns out his swimmers are just fine. Anyways, I guess I’m curious to know how I can track my ovulation or anything when I skip a month or 2 at a time. Or how to know when to best time to try for a baby is. Also some support would be appreciated as well. I’m just feeling so down about the situation.