How do I find out if I’m fertile or not

Mariah • Isabella 10/2019 ❤️

So I have kaiser and I don’t know how to ask or what/who to ask for to find out if I’m fertile. I’ve been having unprotected sex for almost a year now and I’ve been letting my bf cum in me and still for some reason havent become pregnant. I wanna know why but like I said I don’t know how to go about it.