Whohoooo -- sounds like puppy day to me!
 
Sending you all our good wishes for a speedy and healthy whelp.  I'm so glad you are in touch with your vet regularly -- should make you feel much better to know help is very close at hand. Glad you put her in a play pen too.  Now you can keep close watch on her and she can still move around as she needs to. 
Post when you can.
