Pregnant Or Dying?

[buckeye fan]

I have a dalmation molly that has a small sack of "small bubbles?" hanging out of it's back end. The sack is about twice the size of a pencil eraser and the small bubbles are about the size of a large pin head. There appears to be a slight amount of blood in the sack and it seems to be slowly growing. I have two dalmation mollies in the tank so I do not know if she is trying to give birth or if she has ruptured something and is dying. I have seperated her from the rest of the fish and do not know what else to do. I have had the same fish in the tank for months and nothing is new or different. Any information would be greatly appreciated.

 

[WILDER]

Not sure, but it could also be internal parasites, I would post this in the livebearers section very good over there.