My (37M) wife (37F) is pregnant with our first bio child. We tried to have a baby in our 20s, went through fertility treatments, and nothing worked. This pregnancy was a huge surprise and is a highrisk pregnancy. My wife is 20 weeks now.
My brother and SIL have 3 kids (aged 5 - 8). SIL was pregnant again this summer and had a miscarriage at 21 weeks. They were obviously devastated and we felt awful for them.
My SIL talks about her miscarriage a lot, which is understandable. But it has been making my wife really anxious so I first asked my brother if they (he and SIL) can just stop bringing the miscarriage up in front of my wife. He said sure, and stopped, but SIL didn't. So I asked her too, and she said that she will try. She didn't stop.
Yesterday they came to visit us with the kids to stay a couple of days for Halloween. At lunch, my SIL said to my wife "20 weeks now huh, I remember feeling the baby at 20 weeks. Sadly we lost him at 21" and my wife had a panic attack.