Boyfriend problems

Okay so yesterday I went to my boyfriends house and we had sex which the actual sex kinda sucked :/ the stuff before it was good, but that’s not the point haha basically he texted me today saying his mom was taking his phone because she found out and I’m kind of concerned he might be lying...i don’t know what to do but I’m really concerned it had something to do with the sex since it was our first time together and I asked him yesterday if he liked it (even though I didn’t) and he said he really enjoyed himself but now I’m feeling like he doesn’t want me anymore, and I can’t talk to him because he apparently doesn’t have his phone. What should I do?

Btw my boyfriend and I are both 17