Announcing via Social Media (advice needed)

Nyleve • Mama to 4 & 5 y/o boys and a Newborn Baby Girl 💙💙💕
So I have decided to announce my pregnancy once the gender is determined (in a little over a week). I have a FB friend/ex co-worker who has had 2 back to back miscarriages and current fertility struggles. She is extra sensitive regarding these topics on FB (understandably so). My question is, how do I go about making my announcement without hurting her feelings? I have been suggested to block her from that particular post. Any other suggestions? The girl is a complete sweetheart and I would never want my Irish twin announcement to make her feel any type of way. TIA.