Could the fifth person I slept with popped my cherry

Me and my boyfriend had sex and I'm on birth control and hes the first guy to ever cum inside me and he came alot....
After that day I haven't been taking my bc at the same time just later and later... will I get pregnant? I need info fast about this.

Me and my boyfriend was having sex in his car and he also fingered me. After we had sex I saw there was blood on his seat and I told him it couldn't be mine because I already had my period this month. He ended up fingering me & eating me out again and then I noticed his hand was covered in blood...