Why do I feel bad after sex?

First and foremost don’t judge me as a teen having sex if your adult please don’t tell me “well you shouldn’t been doing it in the first place” So I recently had sex with my bf and we’ve had sex multiple times and mind you for my first time I didn’t bled but today I bled and I was freaking out and it just hit me like this is real real and like my family is very religious and I just feel like I did them wrong when I seen the blood like everything just smashed in my face and I just felt horrible and I did my best trying to not show my bf that but I have no friends and I have no one to talk to about this and I just feel horrible.. once I saw that blood it was like “now my innocence is gone” sorry just a rant if anyone can relate please comment