How old you have to be to take pills?

The 'Morning After Pill', also known as 'Levonelle', is legal to be bought by someone over the age of 16.

I am assuming you are either younger than this, or were just confused. If you are younger than 16, i strongly recommend that you go to talk to your GP or the family planning clinic (FPC) the people in there will keep what you tell them completely confidential and don't be nervous, better to sort it out, rather than leave it until its too late!