How long is the morning-after pill effective for?
The sooner the morning-after pill is taken, the better. Best results happen when it is taken within the first 24 hours. It can be effective up to four days later, but by the fifth day it is not very effective at preventing pregnancy.
Author: Jonathan Meddings
First answered: 09 Nov 2014
Last reviewed: 19 May 2018
Rating: 4.7/5 Votes: 858