We decided to go ahead and push the pinky gently down his throat and massage all the way to his belly. He is noticeably getting weak and at 39grams is skin and bones. And the vet is not open until Tuesday. He is resting now with a pinky in his belly. Hope he makes it!
We will try overnight, then assist in 5 days. We won't do the force one anymore. We will have the vet do it if assist feeding fails again two times. Thanks everyone!