Im really scared and need advice

so im 16 and obviously i dont really know much about anything so i need some help. okay so my boyfriend and i have been having sex and there was this one night where after we were done he took the condom off and like accidentally touched me with his tip which still had cum on it. i didnt notice but he felt really bad and got really scared. so when he told me that he was scared he was gonna get me pregnant. he has talked to people older than him (hes 17 so like people that are more expirenced) and they said that that wouldn't get me pregnant. so we were waiting for my period and it was supposed to happen 2 days ago and i still havent gotten it yet but i feel it coming. im really scared because hes worried and its making me worried i just need some reassurance and advice because i am freaking out