Chances of Becoming Pregnant

Patient: Hi there, I was wondering if someone could help me. I’m wondering what the chances are of becoming pregnant using the pullout method? My boyfriend and I have been using this method of birth control because of a medical condition I have I’m unable to take birth control pills. I’m always regular with my period but I’m never sure when I ovulate. If you need any questions answered to help me feel free to contact me. Thank you for your time, Devon

Symptoms: No noticeable symptoms of pregnancy as of yet.