About 5 Hours Ago I Had Sex With My Partner.

About 5 hours ago I had sex with my partner. Last night at around 11:30pm I masturbated but never actually ejaculated but precum came out to the point I was about to cum but I stopped myself. Today at around 12:30 I had sex with my partner without a condom. Didn't cum but I pulled out during it and I felt some precum on the tip of my penis. How big is the chance that she could get pregnant may I ask?