My girlfriend and I have been together for a few months now and have been having unprotected sex. We found out she was pregnant in the beginning of september and we found out yesterday from our first doctor visit that she is 8w5d5+-. The only problem is I hadnt come inside of her until about 6 weeks ago. Is it possible I got her pregnant from unprotected sex even though I never finished inside of her? She swears she hasnt cheated on me either.