Okay, so I have decided that I am going to get the Plan B pill today. Unfortunately I cannot get it until after school which ends at 3 and it is already my third day. Considering I have to take the first pill when I get it and the second 12 hours later this means I will be taking the second pill very early on the fourth day. I have read that Plan B is effective for up to 120 hours after unprotected sexual intercourse (5 days) but it is most effective in the first 3 days. Should I take the risk of getting pregnant or should I buy the pill at the risk of it doing what it should? Your answers are highly appreciated and needed... thank you all.