BABY FEVER ! 😩

So me & my boyfriend have been together for 3years . & when we first met I was on the depo shot , I'm currently off it wasn't on it for more then a year . When I would get  check ups and everything my doctor would say everything is fine . But tbh me and my boyfriend been having unprotected sex our whole relationship (don't judge me) and still haven't got pregnant 😩😭 idk what to do anymore it's kinda weird talking to other people about it cause I'm only 20 not that I want one RIGHT NOW but just to see if I could would be a good feelings but no signs no slip ups no nothing. ANY ADVICE ?