Is a stray dog I found almost going to go into labor?

I found a stray about a week ago, she appeared pregnant so I took her to the vet. He said she was about 8 weeks pregnant, so she is 9 weeks now. I was wondering if she is near labor because she is starting to dog alot, she sleeps alot, hasnt eaten also she has thrown up a couple of times. Please nice answers I want to know so that I can take her later to the vet later.