should i move my preggys?

I got two pregnant mice from two different breeding groups. Should I leave them in their groups. Their in 35Qt tubs. Way big enough, but I don't know if I should.change aspen to something else for them. Hench I thought about moveing them and putting w/e special bedding they might need. Anyone got a clue on what I might need? Also if I did move them I have 2 10gallon tubs for them so yea.

LEave em together, and DON'T change the bedding....
When I have pinks in a tub, I skip cleaning that one til the next week...Change the smell, and you'll likely lose some babies..

You should have no problem cleaning or adding new bedding. If you think they'd like some nesting material, try shredded newspaper or printer paper. Just toss in a handful and they'll make nests with it.

It's up to you if you want to move them. I prefer to have my females alone when birthing, because it lessens the possibility for deaths, baby stealing, and it keeps me from mixing mice up in my lines.