So Me And My Gf Had Sex A Few Days

So me and my gf had sex a few days ago. We ended up doing it twice, the first time we used a condom an everything was fine but i was still in the mood so we ended up wanting to do it again. For the second time we did not usebprotection but she gave me oral for a few minutes then we rested for a while. We then go curious to see how it would feel without protection. My penis was pretty dry since I was cleaned it a bit but when the foreskin was peeled back the skin there was alittle damp. Could the sperm for the previous time still be able to empregante her? Is this a miniml or major concern? Her period shoukd be in two weeks, and she urinated right after.
What should I do. Is there a high possibility she's pregnant?