My brother's girlfriend miscarried

My brother's girlfriend miscarried yesterday. She was told she'd never be able to get pregnant She'd tried for 6 years with her ex husband. (He now has a child w/his new wife.) I barely know her even though they've been dating 5 months. She seems to be shy and I am so shy and so lacking in social skills. Besides we haven't had chances to really be around each other, but I guess i could've invited them over for dinner or something. I only knew about the pregnancy for 2 weeks at most, but I never congratulated her myself.
I feel horrible for my brother, but I feel worse for her b/c of her background. Is that wrong? I've talked to my brother and feel I've helped him. I need to talk to her don't I? But, I d/k what to say. I was scared to talk to her before and now? I'm crossposting this to depression I hope that's ok.

When I lost my first pregnancy I appreciated anything anyone had to say...I just wanted to know someone cared. The wording of it didn't really matter to me.

My heart goes out to her.

I had severe endometriosis for years. Then at age 38, I had a surprise. I was pregnant. It was truly shocking. Then I miscarried at 3 months. Had to have a D&C. Got pregnant again a year later. Miscarried much earlier, about 9 weeks. Third time was the charm. Did a home pregnancy test on a Sunday in May. It was positive. Just happened, it was Mother's day. This one stuck.

No one really knows what to say when something like this happens. I didn't really know how much it effected me until much later, before I became pregnant the third time. They felt like much bigger losses than I had expected. I guess it would have been nice if someone would have said, "I'm here if you need me, even just to talk."