Am i prego?

I had sex WITH my boyfriend but not in my ovulationweek... he didn’t cum and it was my first time... iam 14 y old and my period is been regular for 3 years... mostly around 25/32 days... but iam 3 days late (32th) and iam worried... i can’t talk about it WITH my mom because she Will kill me!! Help me out PLEASE!! Am i pregnant?