I had sex for first time!

We had some troubles with his penis going insides me but at least we did it. When he was going to had an orgasm he was coming outside and let sperms in my vagina and he told his sperms are not so much down (clitoris and down) but we both are scared for pregnancy. After tuesday we had Wednesday sex again and same issues but his sperms wasn't inside me! I don't know what should I do!!! Am I pregnant? And I saw little bit blood yesterday in my tissue after peeing. *my last period was in 12th of september until 15th (my cyle is not good that much cause of my age 16)