Okay HELP

me and my boyfriend have unprotected sex for 3 years and I'm on birth control and he always pulls out really early and finishes himself off. But my period is 14 days late and idk if I'm just stressing out or I might be preggo. I'm NOT ready for a kid and he deffinetly isn't either. what should I do? I know I can take a pregnancy test but I don't know if I'm just sketching myself out. UPDATE: took a preg. test and it's negative