My boyfriend (of 3 years) and I have a good sex life. 1-2 times a week usually..I have been on the Ortho Evra patch for about 5 years now and never had a problem. It's been a heaven send for my cramping problems! We have gotten to where we don't use condoms anymore, but he always pulls out to finish. How likely am I to get pregnant on BC patch with him pulling out?