Family Planning Plus

Plan B (the morning after pill) causes the same side effects in women of all ages. Some of the most common side effects are nausea, abdominal pain, fatigue, headache, menstrual changes, dizziness, and breast tenderness. Usually, Plan B brings on some unexpected bleeding that is similar to a regular period. However, it usually goes away by the time of your next period which may be heavier or lighter than usual.  Your next period may also come earlier or later than is normal for you. It doesn’t normally affect a second period. Is it possible that the first period you experienced was simply some unexpected bleeding caused by your Plan B use? If that is the case, I wouldn’t worry. However, if that was not the case, you may want to contact your medical care provider and explain your situation to him or her.