What Are The Chances Of A Potential Pregnancy?

I am currently using the Ortho-Tricyclen Lo birth control pills. However I missed about 5 days because I didn't have my new pill package with me on vacation. My doctor told me not to start the new package until after my next period, which won't be for another 3 weeks. About 3 days ago I had sex with my boyfriend, used a condom but when I went to the bathroom after, semen came out of me. I'm wondering if there's any chance that I might be pregnant as I've now been off the pill for about a week.