I have a friend who lovingly placed her child for adoption because she was too young to be a mother herself. While she's comforted by the feeling that she made the right choice, there remains in her a sense of longing -- the innate desire to be a mother. Mother's Day reminds her of those things.
Please, please, on this very special day think before you speak. Not being a mom, not having a mom can evoke a profound sense of sadness on Mother's Day for those of us who have lost, have never had, or are struggling to be a mom.