If i had some of the side effects from the plan b pill does that mean it is working?

PLAN B: It just means that there are side effects from the medication. Potential side effects with emergency contraception can include: tender breasts; changes in menstrual flow (spotting, bleeding, early or late period); loose stools; dizziness; headache; nausea/ vomiting; abdominal discomfort or feeling tired. If you develop chest tightness, difficulty breathing, swelling of lips, mouth, throat cont'd.

Plan B: Agree with the above. In addition, plan B when taken within 24 hours of sexual intercourse, will be effective 89% of the time.