You need to at least call a veterinarian and ask them if they think your dog needs to be seen by them.
Uhh... yeah I would take your dog to the vet...
the dog may have colitis which is charecterized by milky white mucus encasing the bowel movement
It could be anything from too many fats in the dog's diet, to have a bit of an intestinal problem (we all get them). Even humans can have a certain amount of mucus in their stools. If your dog's stools are quite white with mucus then it's advisable to take a stool sample to your vets for analysis to be sure there is no infection.
the dog is pregnant
simply Licking a frog.
yes this does mean she is pregnant after awhile the milk will come out if you squeeze the teats
if your dog is throwing up let it drink some milk.
Clarification needed: when the dog is pregnant or when you are pregnant?
Mucus
When a five month old pit bull is throwing up white slime and will not eat or drink a vet needs to be contacted. The dog may be suffering from parvo or even been poisoned. You can try to give the dog Gatorade to help with hydration.
If your dog is throwing up mucus and foaming from the mouth they may have eaten something poisonous. You should take your dog to get medical attention as soon as possible.
A pregnant dog is called a bitch.