Hypothetically

Alright ladies, hypothetically speaking and i am fully prepared to be bashed and whatever else. but legitimate question. i wouldn’t do it but i was talking to some people and we have a little debate. no matter what, if you had sex like up to 10 times in one day and he cummed in you all 10 times if you took plan be within the 24 hrs you would or wouldn’t get pregnant? we’re 20 so young and possibly fertile but what do you all think? it’s stupid and we’re on birth control and married but we saw this video about plan b and made us wonder. i guess you never know but hey, thoughts?