How do you show suppourt for your wife?

So, I feel like I'm in a difficult situation, maybe some diffrent perspectives will help me act in a more helpful manner towards my wife.

See, we have fertility issues and a lot of the problem is my wife's medical condition. Don't get me wrong, I think there's a pretty good chance, but I've always not wanted to be too open about my expectations because I don't want to make her feel like it's on her shoulders. Come to find out, that has been making her feel like she's alone in her disappointment. So I guess my question is, how do I show solidarity without making her feel like I'm disappointed every time she gets her period? She dosen't deserve that kinda stress.