What is Plan B?
How does it work?
The purpose of Plan B is to prevent or delay ovulation. Ovulation is a regular part of a woman’s menstrual cycle where the ovaries release an egg which can then be fertilized by sperm, leading to the fetal development process. It’s not possible to become pregnant without ovulation. Plan B will not prevent pregnancy if you have already ovulated.
The morning-after pill is taken as soon as possible after unprotected sex. Plan B One-Step may be taken up to 72 hours after sex, and ella may be taken up to 120 hours after sex.
Plan B is not the abortion pill. The abortion pill terminates an already existing pregnancy where the fertilized egg has implanted in the uterus and has begun to develop. The morning-after pill does not prevent a pregnancy once the embryo has already implanted in the uterus.
The morning-after pill is not to be used as a regular form of birth control. It has the potential to fail and does not protect against sexually transmitted infections (STIs). It may be less effective if you are overweight with a high BMI.
Common side-effects of Plan B
All medication can come with some side effects. For Plan B, these can include:
- Changes to your normal period (could be later or earlier than usual)
- Nausea and vomiting
- Breast tenderness
- Lower abdominal pain
- If you have severe abdominal pain 3-5 weeks after using Plan B, see a doctor immediately. This could be a sign of ectopic pregnancy.
What if I still haven’t gotten my period after taking Plan B?
The morning-after pill is most effective if taken as soon as possible, but it still doesn’t always work. If you’ve taken Plan B and your period is more than one week late, take a pregnancy test.
During these appointments, you’ll have the opportunity to speak one-on-one with Care Clinic’s registered nurse, ask her all the questions you might have, and talk with someone through all your options.
*Care Pregnancy Resource Center and Care Clinic do not perform or refer out for abortions. We also do not provide the morning-after pill. All medical services are provided through referral relationship with onsite Care Clinic. Care Clinic is staffed by licensed medical professionals.
- Mayo Clinic. (2022, June 3). Morning-after pill. Retrieved from https://www.mayoclinic.org/tests-procedures/morning-after-pill/about/pac-20394730
- Cleveland Clinic. (2022. July 1). Morning-After Pill. Retrieved from https://my.clevelandclinic.org/health/treatments/23386-morning-after-pill