Right-o How long is the gestation period in mice

My brother has a California King snake. Snake's gotta eat. He put me in charge of taking care of the mice we feed her (Mayday the snake), since I already take care of other small animals like a hamster and turtles.

A couple months into caring for mice, I found one whom I wanted to keep. A silver-furred, red-eyed male that I named Willard. I still have him, and I usually keep him with the other mice. But, just recently, one of the Mayday mice had babies. They're now grown up, and I've already sacrificed one to the almighty Mayday. I still have the motherand three remaining children. While she was nursing and whatnot, I moved Willard in with my hamster. Now that the babies are grown, the remaining ones are in a seperate cage and Willard is in with the mother. I want to know how long it takes after fertilization for the mother to give birth

Gestation is mice is about 21 days...

They can have upto 22 pups each time they give birth...usually the more food you supply right before and durring her pregnancy, the more babies she will have...

Here's some site to help you take care of the little ones...

http://www.hiiret.fi/eng/breeding/essent...

http://ko.cwru.edu/services/musfrming.ht...

http://www.rgs.uci.edu/ular/mousebreedin...

I hope this helps...GOOD LUCK!