I have to say that I suspect that the woman you encountered on the fertility site was making up her story. It just sounds a little fishy, especially the language she used, e.g., “killing” the babies. At any rate, I hope she was lying.
Sounds like a very elaborate troll.
Well, she post ultrasound pics of each pregnancy—if she was making it all up, she should have won an academy award for her performance! :-O