Will ulipristal acetate (ella®) mess up my periods?

Ulipristal acetate most likely will change when your next period comes. If your period is late for more than 1 week, check a pregnancy test.

Always have some emergency contraception (EC) around in case condoms break. It happens to everyone – even doctors, even people who educate other people on how to use condoms… Better safe than sorry.

Key information for AFTER you take Ella® (ulipristal acetate)

1. If you are planning to use or currently use hormonal birth control,  wait 5 days after you take ella before you re-start your hormonal birth control. Otherwise, the hormonal birth control will BLOCK ella from working and you may get pregnant. If you choose to have sex during those 5 days, use condoms as your birth control.
2. ella may change when your next period comes. If your period is late more than 1 week, check a pregnancy test.
3. Do not use ella if you are breastfeeding.
4. ella® does not protect against sexually transmitted infection(s) e.g. HIV. Gonorrhea, Chlamydia, Herpes, etc. Make sure you get checked for STIs if the condom popped.