My girlfriend and I have been sexually active for the last little over a year, I have no doubt she's the one for me but I'm still not ready for a child, shes confident in not needing a condom anymore she is on birth control and I am careful about pulling out before I reach an orgasm. She has been back on the pill for 2weeks starting it right after her period finished, we were having a fun night and had sex 2 times with a condom then decided to go a round without one, it was the 4th time that night I had reached an orgasm and I'm not quite sure if I pulled all the way out in time, are we at a risk of pregnancy?

If it effects the situation before this night I had still reached an orgasm eveynight for the last week(sperm count relativity)