I don't know what to do!! please help!

okay so my boyfriend and I have been dating for ages, we've had sex with and without a condom, when without he always pulls out way before he's about to cum!!! around 4 days before my period he stuck it in for around 4 seconds and pulled out, no worries! but now I'm 2 days late for my period and I'm starting to worry, he peed before he came so the pre cum shouldn't have been active?! and he pulled out! am I being crazy or is this normal?! I'm so so worried and I'm young so I can't tell my mother!! please help 😅😅