2 unneutered males

Question
When I got a partner for Max, I also rescued an unwanted female who is sweet as can be.  However, she is pregnant.  When I pet her, I can feel the babies moving. She is really big.  I wonder about how long it will be before she has her babies.  What in particular should I do to help prepare?  Should I allow her mate to stay with her?
Thanks,
LeAnne
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Followup To

Question -
Hello,
I have just added a male with my piggie Max.  I am not sure if I should keep them together.  At times, they look at each other and make a sound like they are snapping their teeth together. They really don't interact as much as I thought they would.  Should I seperate or see if they start interacting more?
Thanks,
LeAnne

Answer -
Hi LeAnne,

Typically two male guinea pigs, especially unneutered ones, usually do not make a good pair and sometimes end up fighting. This is not always to case, so it's crucial to keep a close eye on them for a while.

If they are not fighting or scuffling, there's no need to seperate them. If fighting or scuffling begins between the two, then I would highly advise that you seperate them.

If within a few days you see no fighting, they should be able to live fine together.  

Answer
Hi Leanne,

The typical gestation period for a guinea pig is 65-72 days. If she is fairly big and you can already feel the babies kicking, then she is near her due date, which I would estimate is within the next 7 to 14 days.

Guinea pigs usually fair fine on their own without the need of human help when it comes to their pregnancy and giving birth. Just make sure that she has a house that she can fit into comfortably, as that will ease the stress when the time comes for her to deliver. Also, if you don't already, I'd would recommend adding some guinea pig Vitamin C drops to her water to make sure that she is receiving all the nutrients that she needs, Vitamin C being one of the most important.

Her mate can stay with her up until she begins to deliver, then he should be removed right away. The female will be able to get pregnant again within 2 to 15 hours after delivering babies.

Afterwards, the babies can stay with her until 4 weeks of age, after that time they need to be weaned. At 4 weeks of age, the male babies are sexually mature enough to get the mother pregnant, which you definitely don't want.