No, not unless you anticipate complications. However the puppies will need their shots so you do need to be registered with a vet.
250000
A female will not generally need help in birthing but if she seems to be having problems and the puppy just won't come out you may need to pull him out yourself, consult a vet if she is having severe problems.
A Vet and money to pay for a c-section.
50000000000 trillion
This can be caused by a umbilical hernia which is fairly common in puppies. I would recommend you see your Vet about this.
goto the vet
I would suggest going to the vet first and seeing if they can help. Just see what they recommend and your puppies will sure to be fine.
I would think yes.
You need to call your vet today. If it is not drinking either, you need to see the vet TODAY. Puppies love to eat, so if they stop, something is definitely wrong.
If your puppies are truly running a fever then you need to take them to a vet for proper diagnosis and treatment. Fever has many causes.
You need to ask a vet. Many people now don't think it should be done.
That's impossible for anyone on Wiki to know. She should be taken to the vet and be examined. They can do an ultrasound early or an X-ray later in the pregnancy to see how many puppies there are. Breeding an older dog is somewhat risky and she may resorb some of the puppies or deliver stillborn ones.