Help me ladies

D💗

Okay ladies really weird rant but just help me ease my pregnant anxiety lol. Okay so I am 19 years old and 20 weeks pregnant. My boyfriend of 3 years and the father of my future child is 20. So idk lately I've been feeling really insecure that we won't stay together. And I know I know a baby won't make him stay lol but I got pregnant on accident so it definitely was not planned but anyways. He tells me he loves me and that he doesn't want anyone else & that he can't wait to marry me etc. but I can't help but feel like is a load of bs because we've only ever had sex with each other, NO ONE else. So idk help me here ladies am i overthinking & everything's okay or should I be worried ? Lol 😭