From what i know..
You can only get pregnant when you are ovulating (12-18 days after your period) .. but its still possible to get pregnant anytime of the month .. one reason is because the sperm can live inside you for up to almost a week.
Hope this helps!
yes sperm can survive for 6 days actually but they need to fertalize the egg within 12 to 24 hours I think it is. I just found out i’m pregnant and got a book from the hospital on such things. So idk it all depends I guess tho i wouldnt see it as very likely.