Doctor, Me my girlfriend had a sex just after the periods. I did not know about the precum can cause pregnancy. But I did not know had a sex with her and used pulled out method. That precum on the tip of penis was inside her for the long time or multiple time when there was precum on the penis. I am very worried about it. And she had cold and their is body ache. And the same thing I have done today sex. Now I am very worried about it Please reply. Today she had a chest pain, back pain,ass pain. Please reply.