Oh my goodness.
I'm so sorry... what a heartbreak. It's great that Lynx is recovering from it. I wish her the quickest recovery possible.
Honestly, you must be hurting, but remember that you did do everything right and that Lynx is lucky that you bred her. In another situation with a less responsible/experienced breeder, something much worse could've happened! I mean, you even kept her at your house after the breeding. You gave her the best possible chance of having healthy puppies. And I really do feel everything happens for a reason, even if it seems random and cruel.