Help me ladies

OK so I’m just curious me and my boyfriend haven’t really been trying but we have had unprotected sex for a long time now like more than two years and I’m still not pregnant I have used all the ovulation strips and I’ve been taking like the prenatal ones with the iron in them and I’m still not pregnant so I was gonna call my OB/GYN what do I tell them like how do I word that I want to see if anything’s wrong with me so I know why am not able to get pregnant?