What are the cons of taking the morning after pill?

Problems with: The morning after pill include occasionally causing irregular bleeding, occasional side effects from Progesterone such as bloating or water retention or mood swings, and the small chance of it failing and so being pregnant.

Potential side : Effects. Potential side effects w emergency contraception: 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. Take pregnancy test ; notify dr if your period is 7 or > days late.