How do you tell if a bitch has works or is preggers? We have a dog hanging round work that we feed leftovers till one of us buys food (me) and she looks like she either just had puppies a month or two ago or worms shes severely underweight and not taken care of so if shes preggers i want to get her to HS NOW! if not ill buy otc wormer, worm her then try and find a home for her.