Most of my girl's temp goes up and down a few days before. When it goes to 97-98 it's time. (Not always the case.) Sometimes they have a gooy dark poop the day of birth. She will need to get used to her pen so she can't move her pups all over. There was a gal on here that found a few of her pups in the heat duct... ( I think that was YT) I put mine in my bedroom so they know I am there at night. She is a beauty, you'll do fine.