Help confused 😢👎

Hey I'm so confused I have no idea if I should be worried ive had sex before with Being safe. this time I didn't think it would happen and so I was high at the time.so my boyfriend tried to put it in but didn't succeed I was to tight and I didn't feel anything wet or anything at all . He just gave me had intercourse and started bleeding a lot I didn't know why ? The first I had sex I didn't bleed at all so I'm confused im to have gotten my period yesterday what should I do ?