A little background: my husband has had two best friends since middle school. Both of those guys were best men in our wedding. Lately, the two of them have been spending a lot of time together, and my husband gets left out fairly often.
Yesterday, both of their wives announced pregnancies; both due within a couple weeks of each other. So they will be "pregnancy buddies!" I mostly just feel bad for my husband. The two dudes who will have babies around the same time will now have even less in common with my husband (one has a three year old already). We already only see them about twice a year; I think this will only decrease now.
It just makes me sad how people exclude us because we don't have kids. Like we don't already feel isolated enough. I get tired of chasing them and trying to set up a time to hang out. Eventually, I will give up.