well heres a update ,and jack this was very weird to hear you say u never seen it .so i said self if he hasnt seen it im prolly got a bad case of sumthing but!!!!!!!!!shes got 9 healthy pups 17 days old and that sack has a nipple on the side so the sack was full of milk i guess.after birth and a few days it was empty.now it looks like a empty ol mans nut sack lol.just wanted ya to know she and the pups made it.thanks all