i ignore it or laugh at it. these people who gossip lead such pathetic boring lives that the only thing they can do is try to butt into yours.
@ itsbeenalongtime the same thing happened to me, my wife and I were married in the first part of August and our daughter was due June 2nd and I had "concerned relatives asking if she was conceived in wedlock or not because otherwise they wouldn't attend the baby shower. I just told them to count back 9 months from June 2nd and tell me what date they got.