Irregular cycle

I probably have the most irregular cycle known to man 😔. I'm trying to get pregnant but it's extremely hard when my period skips a month or two.   I have used <a href="https://play.google.com/store/apps/details?id=com.glow.android.eve">period tracker</a> and now glow but it rarely comes on the days predicated I range from 30 to 60 days inbetween periods. It's hard to tell when I'm ovulating.  Is this affecting my chances of getting pregnant and how do I go about to fix it?