No emergency contraception is 100% effective, but the sooner you see someone to discuss your best options the better.

 

Following oral emergency contraception you may experience:

 

  • Side effects which do not last long but may include feeling sick, dizzy or tired, headaches, breast tenderness and abdominal pain.
  • A very small number of women will vomit. If you vomit less than two hours with Levonelle and less than three hours with ellaOne the pill will not have been absorbed, you may need a second pill.
  • If it is more than seven days late, shorter or lighter than usual or you have any sudden or unusual pain in your lower abdomen it could be a sign of an ectopic pregnancy. This is not common but is very serious and you will need see your doctor.