please help me because i’m dumb

Okay, so i have always been told that semen can ‘live’ in the vagina for up to 5 days. I am currently on birth control (the mini pill/ Progesterone-only pill) however, i threw up my pill and so i am not having sex/ unprotected sex for the next 7 days as advised.

but im confused, if semen can last that long in the vagina, is there still a chance I could be pregnant as I missed that one pill?

i understand that this question is probably ridiculous but my sex ed at school was whack xx