She had tapeworms and the vet recommended this particular wormer because it is specifically for pregnant dogs.
It is just so weird because she does look pregnant right after she eats, but at times she just looks skinny. Yesterday it looked like she just had a lump on one side...maybe the pups are just moving around. She had four pups last time so maybe she is having less pups this time and she was also bred to a much smaller male this time as well. I guess us mommies just worry too much