Take it to the vet and get her checked out
it can. it depends on want bread the dog is and the age of the dog it also madders how many puppies it had
I don't think so. I think they produce they same way as any other dog.
Actually it is more likely that your dog is about to have puppies - if she had already had the puppies her belly would be smaller than before. Dogs will start to leak milk a few days prior to delivering puppies; this is nature's way of making sure there is enough milk to feed the puppies.
10 to 20 weeks
5 years
Have the dogs fixed. The vet can perform a spay-abort. Delivering puppies sired by a rottweiler can be life threatening to the smaller dog.
a month
I think it is about 10 months...
it takes 2 months
probably not. only if that dog has puppies.
it best not to have puppies with a dog from a dog shelter