A puppy pool has been created in case you would like to get in on the fun of guessing the birth details (Thanks Payton!).
Check out this google doc! Its all on the honor system to put the $1 in at some point. If you only have the time to update the sheet with your entry now, and want to pay in later its all good.
Everything should be updated by Monday since that is the first possible whelping date.
As for my own guess, at 13 – she is either just being fed extremely well, which is true, or she is looking larger than last time because of puppies. What do you think?