I am 17 yr old girl who has been running for 5 yr. I have not menstruated ever, I think because I run. I have run 18:43 on hard course. I wonder how fast I run if I have my womb and uterus removed. I dont want kids so I dont need the xtra wait. Trying to win state championship nxt yr if that helps. I stand up to pee as leg stregthening. Should I keep dong this or is it useles?