Something really strange is going on, and it's awful to watch. In some instances the women have actually considered self harm because of their desire and inability to have children, even after tens of thousands spent on IUI and IVF. This can't be accidental, but I have no idea what could be causing it and how anyone would go about proving the connection. I hear all sorts of wild theories such as birth-control in the water, or plastics imitating estrogens, or pesticides interrupting hormone pathways, but they're all correlative when I've investigated. Never really seen it any truly compelling evidence. In fact, I've never even seen real evidence to prove that this is a phenomenon that's actively occurring, but man, it feels like nearly every fertile-age woman I know is having problems, and the few that aren't probably just aren't talking about it.
From a personal and selfish standpoint, I now have two kids and it sucks not having any friends that have kids.
I hope it gets figured out.