please give me advice ):

so, my periods been very irregular for the last 3 months. last month, it came a week and a half late and was super heavy! this month it came 2 weeks early and lasted for a day. eve told me my ovulation ended about 3-4 days ago, and i trusted it but i’m a little worried that my ovulation may be thrown off because of the irregular periods. my boyfriend finished in me last night and i was for certain i wasn’t ovulating and wouldn’t be for a while because of what eve is telling me but i’m still a little concerned. i have a gyno appt tomorrow to check for endometriosis, ovarian cysts, etc. and i’m too shy of a person to bring this up to them. do you think i should be worried about pregnancy because my period has been irregular? or is it possible that because of the irregular period i just wasn’t ovulating at all? i never even thought about this, i wish i would’ve been more safe.