Am i pregnant ?!

My boyfriend and i haven’t had sex yet and i’m a virgin. I masturbate him a lot and he always has pre cum, my vagina is always sitting on him or usually on his stomach. My period is late and i’m very anxious and nervous that I may be pregnant especially because i didn’t know that i didn’t have to have sex to become pregnant and that it’s possible that his pre cum may have swam into if it was that close. Any way you guys can reassure or help me i’m practically dying !!