If you are referring the Plan B or one of the other “day after” pills, 71 hours is pushing the envelope. It's not foolproof under even the best of conditions. Take it, but if your regular period is more than a month late, do a pregnancy test. It is not intended to be one's primary form of contraception. read more
I believe the question is about the emergency contraceptive pill called unwanted 72 hence the time window 72 hours. Now taking the pill at 71st hour could be a close-shave. Better to use the ECP as soon as the situation demands it. read more
If you forget to take a birth control pill, take it as soon as you remember. If you don't remember until the next day, go ahead and take two pills that day. If you forget to take your pills for two days, take two pills the day you remember and two pills the next day. You will then be back on schedule. read more
Birth control pills are safe for most women, but all medicines can have risks & side effects. Your doctor will help determine if the pill is safe for you. Birth control pills are safe for most women, but all medicines can have risks & side effects. read more