I can't really help, just wanted to give you a .

Maybe she's trying to be helpful, and just totally saying the wrong thing? Perhaps she thinks it's good to be positive with you, but doesn't know the right way to go about it? Obviously it would be much better if she was positive about the IVF, but she really just might not know the right thing to say.

Can you talk to her about it, and tell her that her comments are really unhelpful and upsetting to you? I'm sure that's a difficult thing to do, but it might make it better in the long run. I hope you can work something out, and have her understand that you need her support.