Ok so this is a little embarrassing

So me and my boyfriend of 2 years just started having sex in December (it was my first time not his sadly). (He was a fuck boy at some point but not anymore) anyways but every time we have sex yes it feels amazing and we try cowgirl and missionary and doggy style but idk if something is wrong with me but I just can’t have an orgasm or “cum” and yet he dose and I’m just laying there when he’s done like ‘that’s it?’ Idk like I said I’m new to this whole sexual stuff so idk someone please help me