Friend ghosting me because she hasn't gotten pregnant yet

So I have (had?) a really good friend who was the only one there for me during my infertility struggle and

<a href="https://glowing.com/glow-fertility-program">IVF</a>

process. I wasn't open about it to anyone but her. A couple months before I had my children (now 8 month old twins), she started trying for her first.

During my struggle, from her talk I got the impression that she felt she'd get pregnant easily. Anyway, they even bought a brand new house in anticipation for kids. They took out a huge mortgage, etc. Yet she still isn't pregnant, and she has communicated with me less and less. We haven't been over to her new house yet, but I get the impression that she wants to completely ghost me after we finally visit her house so she can show it off. The thing is...they've decided they may need fertility treatments, but they can't afford it since they bought a house.

It's annoying that she's avoiding communication with me after she knows the hell I went through to have my babies. She used to talk to me about her struggles, but now she mentions nothing of it.

What do I do? Or what would YOU do if you were me? She was a dear friend, but I think she's making it to where we can't be close or even friends anymore.

Edit: What's the best way I can talk to her about it? She only texts me once in a long while now, and it's nothing of substance.

Also, I never really bring up my babies in text conversation to her anymore. I never send her photos of them (and I don't upload them to social media as well). I thought that would help her, but it didn't really work. Plus, I wonder if I should even keep her as a friend if she doesn't want to acknowledge my children...