Helpppp....

Okay ladies I have details and questions and I really really need answers from you guys okay. So today me and my boyfriend had sex of course but lately he has been drained it when I say drained I mean like it's just like it ain't thick white come but it's more of a clear watery substance right so me and him had sex today and it got carried away and he end up not pulling out and I was on top so I want to know from you guys what should I do should I be worried or should I not be worried and today I actually miss my period today so I need to know what's going on