ovulation

I seriously don't think I ovulate. I haven't went to the dr to find out anything but I'm scared I don't have the chance to get pregnant. I'm 26 and have a boyfriend and we don't use any protection and he always finishes inside me. At age 21 I had a abortion. I'm scared I messed up my female organs and I'll never get pregnant again that orrr I just don't ovulate regularly even tho I have a regular period. I use the glow app to map out my period and it's never really wrong it's always the day of or a day later that I get my period. Ugh. Help 😭