How effective is ellaOne® at preventing pregnancy?

How do I know if ellaOne® has worked?

You will know ellaOne® has worked when your next period starts. After taking ellaOne®, most women have a normal period at the expected time, but some may have their period later or earlier than normal.

Take a pregnancy test if:

  • your period is more than seven days late
  • your period is unusually light or unusually heavy
  • you experience symptoms such as abdominal pain, nausea, vomiting or breast pain
  • you have any doubt about being pregnant.

Pregnant after ellaOne®?

If you have accidentally taken ellaOne® during pregnancy, or have become pregnant despite having taken ellaOne®, HRA Pharma (the licence holder of ellaOne®) is interested in receiving more information about your pregnancy. Information is anonymous to preserve your confidentiality. You can report information at www.hra-pregnancy-registry.com, or ask your doctor to do it for you. You are strongly advised to contact your healthcare professional as early as possible if you become pregnant.