I told one of my cousins, after she had a miscarriage, as she really seemed to need some support, and I had found the loss support forum really helpful when going through my miscarriages.
Other than that, nope. I like that its my anonymous place to share TMI that I wouldn't share necessarily with close friends/family. LOL
ETA: Dh knows about BnB, he sometimes asks me what BnB ladies would say, or what mommy forum would say, about a certain situation as it comes up