Can soy shakes make you ....

I drink 2 soy shakes everyday to keep me full throughout my work day... One of my coworkers who is 71 years old says she takes soy pills and she still gets periods because she doesn't want to go through menopause. I don't get regular month to month periods and no mater how much my husband and I try we cannot consieve. I was wondering if maybe the soy shakes would possibly help that... As weird as that may be lol. I know I can go to my doctor and do loads of things but I wanna try things like this on my own before I do see a doctor.