Pregnant Piggie

Back in October, we adopted 2 guinea pigs. We were told they were both female, but very quickly while bathing them, I realized that one was a boar and the other a sow.
I was hoping that the sow had not gotten pregnant, but she has begun to show this month. And is growing larger every day!
Guinea pig's gestation is approx. 70 days, so we are now trying to 'guesstimate' her due date. We can already feel the baby(ies) moving inside her, so we know it will be soon.

This is our sow, Latte who is quite round.