If more than 3 doses are missed, you need to stop taking the old cycle pills and start a new cycle of pills. Also you may need you use additional birth control method (condoms) till upto the last 7 days of the pill. It is common to experience periods within the month. It is unlikely that taking 4 pills would harm you, however if you have nausea, vomiting or abdominal pain, contact your health-care provider immediately.
These Q&A’s are for educational purposes and should not be relied upon as a substitute for medical advice you may receive from your physician. If you have a medical emergency, please call 911. These answers do not constitute or initiate a patient/doctor relationship.