Hello , I and my girlfriend had unprotected sex yesterday night. I withdrew 10 seconds before?ejaculation. But however, when i ejaculated a drop or two of my semen squeezed through my hand and fell on the region just below the hip (Frontal) of my girlfriend. She immediately rubbed it with her hand and then washed it with water standing followed by drying it with towel. Are there any chances of the sperm going to the Vaginal opening and causing pregnancy ?