16 and worried

I just had sex for the second time ever with my boyfriend last night. With did it the first time about 3 weeks ago we were both virgins. It hurt like a b____ at first but then it was enjoyable. And afterwards I had a weird feeling in my lower abdomen with a bit of blood. But this time around it hurt a bit again but there was no weird feeling afterward but I bled more than last time. I'm kind of scared. We used a condom both time but I'm seriously scared rn for why I'm bleeding more now. We also gave each other oral and he also fingered me a lot.