How to tell if my dog is pregnant?

I think my dog is pregnet what are some ways I can tell this is what makes me think she is.her nippels are swollin and thare is milk coming out of tham she is a little more lazy and also a little more agatated.she also isgeting vary jellis and craving love all the time but I just had a house fire and cant affored a vet so any advice would be gratlly welcome and yes she did have contact with a male.

This question should be in Pets and Animals, please select the right category next time!

If your dog has swollen nipples, a bigger and harder stomach and has changed some of her habits then she most surely pregnant. Find a nice place for her to give birth, somewhere calm and quiet. If she gets used to sleeping there now it will be easier when the pups come along. And just because you don't have money for a vet it doesn't mean you can't ask them for advice. A good vet will help you. And do some Internet searched to learn how to take good care of your puppies. good luck!