The morning after pill is not there to replace regular contraception, but it is possible to take it multiple times in your life in the event of unprotected sex or contraceptive failure.
There are two types of hormonal emergency contraception available in the UK: ellaOne (ulipristal acetate) and levonorgestrel.
ellaOne is the most effective morning after pill**. When taken within 24 hours, ellaOne is 2.5 times more effective than other emergency contraceptives containing levonorgestrel.
**verify at https://www.ellaone.co.uk/verify/
As the name suggests, emergency contraception is intended for emergency use only and should not be used instead of regular methods of contraception. It is also important to note that the morning after pill may sometimes temporarily reduce the effectiveness of some contraceptive pills, so if you’re taking the pill, you should also use a barrier method – such as condoms – until your next period.
Don’t forget that unplanned pregnancy isn’t the only risk when you have unprotected sex. Emergency contraception does not protect you against sexual transmitted infections (STIs), so if you have had unprotected sex, you should visit your local sexual health clinic or GP for a check-up. It’s a good idea to get checked for STIs regularly if you’re sexually active.