What is the probability that I would become pregnant with twins?

wow twins congrats. I remember when i gave birth its was really painful and i was getting so mad because so many people were looking at my Virgina and im very overprotected about my body and my b.f was Video taping everything. At the end when i started pushing that's when it hurt the most and i started to scream a bit and it was annoying because all the doctors were saying "push, push" "harder" "ur not pushing hard enough" I was so mad and going through alot of pain. but once my baby was born i was the happiest women on earth.So don't worry just remember push hard and breath and everything will be fine.