Thanks for trusting ATD about your health care.
I can understand your concerns.
The chances of pregnancy are not there with pills if you are using it as directed and on time because it is 99% effective in preventing pregnancy but you should use condom to prevent pregnancy.
Hope it is useful, feel free to discuss more questions.
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.