I went through a nearly-identical situation, and know only too well the pressure to pretend it didn't happen, minimise and keep quiet
Don't scare pregnant women with your horror stories, don't make strangers and acquaintances feel awkward when they ask you if you have children or how many you have, perfect your 'oh well, life goes on' response when people tell you it is 'sad'.
Fetal abnormalities aren't contagious. Reading about it won't affect your pregnancy any more than reading about babies being breach in your book will make it happen.
When I lost my baby, DH and I found out we had 2 sets of friends who had been through something similar. It is more devastatingly common than you might realise, but our absurd social code means people don't talk about it, even when they need to. My stillbirth opened the floodgates with a few friends who have been desperate to talk about their own MCs but never felt able to bring it up in 'polite conversation'.
It shouldn't be like this, it really shouldn't.