I had sex about 1 week after my period.. (during my fertile window/before this period) i usually do , but the boy said he didn’t cum in me. I felt him cum on me and i didn’t feel him cum in me , but my period is a day late and i feel weird. I don’t want to be pregnant because i’m too young, but am i pregnant , or am i just stressing myself too much ?

UPDATEEE: I got my period, but i still feel weird..