Contraction!
Skip this if biology isn’t your thing, but I took this short video of a really good strong contraction during Monday’s “best whelping ever”. If you’re interested, I gave a subcutaneous calcium injection once we had strong contractions per my repro vet’s advice, Pedialyte with glucose given a couple of times to keep her strength up but honestly this was just so smooth and easy, she kept contracting like this throughout and didn’t get exhausted at all.
The puppies nursing helps with oxytocin release which also helps strengthen the contractions (calcium helps support the muscles doing the work), which is why I don’t understand when breeders take the puppies away until labor is finished – if you have a bitch who is moving around a lot while she’s laboring you can put the puppies in a safe warm box in the whelping box area to keep them safe if needed, but then put them back with her as much as possible. Alice was very chill throughout so the puppies stayed right on her the whole time. It’s much more natural this way and it all helps both her AND the puppies (she gets the oxytocin to help with labor and bonding and they get colostrum from nursing and stimulating from her cleaning them).
If every whelping was as perfect as this one I’d never worry about it!