yes one can still get someone pregnant while on. i have knocked a girl up while on. but i was also taking some things to resart hpta too.
but it sure lowers the % and im all for trying to put the odds in my favor, there are no garentees for anything.
lets say between the ages of 15 and 20 i got a girl pregnant. then between 22 and 32 did it again. i ahd way mroe sex in the later example then in the first.
so even going by my personal statistics it sure helps...lol!