I am 18 years old and I have a question. Can masturbation lead to pregnancy? I am worried about a situation like when I masturbate in my pants and if my partner touches my pant with her hands and then she goes to the washroom to do female masturbation which means that now she has my semen on her hands and that semen might enter her vagina and make her pregnant? I am not sure if sperm will survive or die and it is really a matter of concern to me. My mind is full of what if it happens. Please share your knowledge and also if there is a chance of spreading STD/STI /HIV/AIDS in this situation.