You can talk to me. Listen to what she has to say, but do not judge. Do not belittle her feelings. Don't try to pretend that everything will be okay. Your willingness to listen can be of great help.
Infertile women feel cut off from other people.
Your ability to listen and support her will help her handle the stress she's experiencing. Her infertility is one of the most difficult situations she will ever have to deal with. Her cousin is breast-feeding. The men are watching the football game while the women talk about problems with their kids. She feels left out, to say the least.