Hi, my girlfriend and i experimented a little bit almost a month ago. She gave me oral sex and kissed me, and then i gave oral sex to her. She didnt make me cum, but im sure precum came out. So this leading to that, can precum transfered from my penis to her mouth to my mouth to her vagina, cause pregnancy? She had bad stomach aches in her left side only, headaches, fatigue and now she has cold symptoms.. please help, she's expecting her period in a week.