Can you tempt her with some plain yogurt or cottage cheese, not a whole lot, but the extra calcium would be good for her.Wow! Ouch for sure, haha.
I talked to some other people that breed labs and they were saying theirs usually go around day 60.
We'll know soon enough I guess though! She's not eating a lot, I've been trying to entice her to but she just hasn't been real interested. She's only eating around 3 cups of food a day no matter what I do.