Is it normal to have dark spotting followed by cramping and then my period a few days after taking plan b? i took the plan b pill twice in 2 weeks.

If you are needing : Plan b twice in 2 weeks - then you really need to look into a good form of baseline protection. Potential side effects w plan b: tender breasts; menstrual flow changes (spotting, bleeding, early or late period); loose stools; dizziness; headache; nausea/ vomiting; abdominal pain / cramping or fatigue. For chest tightness, difficulty breathing, swelling of lips, mouth, throat – call 911.