When should I call my doctor if I took ella?

Call your doctor if you have any of the following side effects after taking the emergency birth control pill ella (ulipristal) and they become severe or won't go away:
  • painful periods
  • spotting between periods
  • nausea
  • tiredness
  • headache
  • dizziness
Get medical attention immediately if you develop severe lower abdominal pain three to five weeks after taking ella. This may be a symptom of an ectopic pregnancy—that is, a pregnancy outside the womb that requires emergency treatment.