what? WHELPING ALONE? IS THAT VET NUTS?.... ok, I am done...
good thing you are a good mommy, the pups should correct themselves right before whelping, but again anything can happen, my girl is only about 34 days pregnant and I just cancelled my vacation today because I WONT let her alone thru pregnancy and whelping.
get that second opinion tomorrow, and now is just a waiting game on when she is ready to let those puppies down...

hugs,