Not on birth control

Hey ppl! So this is going to sound crazy for a lot of you but... I’m starting to get worried. I’m not on any type of birth control, never have been. I’ve had a couple of serious relationships and I have always used the “pull out” method. I do have a boyfriend currently and we do it a lot lol. My worry is that I haven’t gotten pregnant maybe out of luck!! Is there a way to check and see if I’ll be able to have kids ever? I do get my period regularly never miss one.