i have some concerns for a pregnant guinea pig

Question
today i went and bought my kids  2 female guinea pigs...  I took them to petsmart to pick up a couple of things like the vitamin c drops  for their water and a sales associate came over to see them and informed me the one female  was PREGNANT  and  she could feel  the babies. My question is  my other  guinea pig i bought with her  is only about 3 weeks old do i need to seperate  them from each other or will it  be ok to keep the girls together?  I have been searching on here for a few hours  and some sites  say it is ok to keep 2 sows together  and it will be fine  and then others say no do not keep them together  it will be bad....  Please help  my kids  are already attached to them and I dont want them to hurt each other  or get stressed cause  of  the seperation

Answer
Let me assure you that there is no need to separate the two pigs.  They are very social creatures and live in herds in the wild. The older sow will cause no harm to the younger one, and the younger one will learn about being a mom from the older sow.  

I've had sows together when one was pregnant and the others were not, and when a litter comes they all take turns tending to babies, doing diaper duty and cleaning the little ones. I had one sow that started producing milk and shared in the nursing even though she'd never had a litter.

Guinea pigs love the babies. The boars are excellent fathers too. They will allow the babies to crawl all over them and cuddle with them much as lions in a pack do. So rest easy, the new family will be fine. And in fact they do better with company.

I am wondering though, if the clerk at PetSmart was wrong about the age of the smaller pig. They're usually not weaned until four or five weeks and many stores will not take them that young. There's a chance that she's older than you think. But it really makes no difference.

The sites you visited that said it was bad to have the two pigs together probably had little or no experience with raising cavies. It's hard sometimes to sort through what is good information and what is not. Having raised hundreds of litters over the years I can assure you that you do not have anything to worry about with the two girls being together.

This will be a wonderful experience for your kids. Keep your camera ready because you're in for a surprise when the babies come. They're the most adorable little things.

Best of luck to you and the kids and congratulations on your new family.