Elaine Sinclair

Hi ,I have 2 sister's mated at the same time .I thought they were both pregnant ,one is very large showing its teats .The other looked to be the same but now i'm unsure .They are both in the same cage .The one who no longer looks pregnant is dragging her sister back into the nest .Advise please first time mating my ferrets .? Are they ok to stay together ? .Reluctant to move one as hob ,still wants to mate with her ? Thanks in advance

Hope its ok ,i have joined ,hopefully to get some advice on ferret .My name is Elaine ,i'm from Bury