Ah that bites. Well, to be honest I have never seen a large amount of blood from my girls except with one female's first litter. She had 3 maybe 4 pinks and wanted nothing to do with the one that was alive. She ate the other dead ones. The other pink died shortly after.
She did have a little more blood than I'm used to seeing... so maybe there is something to it. Let us know how those other 5 do. Once they get past the next few days, they should do well I would think. Pullin for ya