F18 [F4M] I need someone to impregnate me.

I am an 18F and I believe that my bf(20) is infertile, I have been trying to get pregnant for 2 months now by taking the condom off my bf or breaking them and nothing has worked. I am looking for a man between 18-40 to act as a sperm donor and impregnate me. I would like to see your body build before we discuss anything. Additionally, this would be a one or two time thing until i am pregnant, after that you can have nothing to do with the child. Thank you.