Any studies on effects of going on hrt on other people in the household? I'm worried because I started on estradiol and spiro and within the same month my sister had her first cycle, and my mom's went wild. I don't want my hormones to be messing them up! Is this a thing that happens that I should be worried about? Or is it just spurious correlation?

If it *is* a thing that happens, what do I do? If it *isn't*, how do I prove there's no causation?