Plan B is a method of emergency contraception which is commonly referred to as the Morning After Pill. It can be an ideal option for women who want to prevent pregnancy in the event of an “accident,” such as when a condom breaks or they forget to take their birth control pills. As with a variety of other medications, there are side effects of Plan B. Are irregular menstrual periods one of the potential side effects of the Morning After Pill?
Plan B and Irregular Menstrual Periods
Some women may notice changes in their menstrual cycle after using the Morning After Pill, while others may not. According to Planned Parenthood, women who use Plan B on a regular basis may experience irregular menstrual periods. Any time you use emergency contraception, however, your next period may be late or early.
According to McKinley Health Center at the University of Illinois at Urbana-Champaign, some women who use emergency contraception will also notice a difference in their menstrual flow. The next menstrual period that you have after taking Plan B may either be lighter or heavier than usual. It might also last for a longer or shorter time.