So I'm making another attempt at breeding mice. Got a bigger cage bought 1 male and 1 female they don't seem to be breeding. I've had them for about 2 months. So I went and bought 2 more female and and 1 more male.
The other male is in a cage all on his own.
But the male I already had isn't Brothering with the 2 new females is it possible they are already pregnant?

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