I had rubbed my penis on my gf vagina on 2 days before her period starts. I was not used any protection, but also didnt ejaculated. There was just some pre *** on my penis during that time. She has successfully got her periods after two days. But she has started to feel weak, headache and vomitting after 9 days of that event. I m very tensed and curious. Is there any chance of pregnancy? She is still virgin, we didnt have intercourse. Please help!