Ok long story. So we visited pets at home yesterday to adopt 2 guinea pigs from their adoption centre. Told to come back today as that was the date they were due to be adopted from. Return this morning only to be told from 5pm. So we drive back and find that they have been adopted 
. We ask to speak to the manager and he takes us into the back room and apologises but tells us he has 3 young sisters (7mnths) handed in on the 23rd January who he will let us adopt. They had come from an elderly guinea pig hoarder and in the confusion had been housed with their brother in pets at home. I felt guilt tripped into taking all 3 because their future was uncertain they could be pts and the manager said they didn't look pregnant to him, I just couldn'tleave them aoone in that tiny store cupboard. He knew we had no experience with guinea pigs let alone potentially pregnant ones but I (foolishly) took all 3 sisters home. So how likely are they to be pregnant? Should I take them to the vets? We are committed to them and want to give them the best care. I asked if I should take them to the vets etc but he just said to leave them to it and drop the babies if it happens back in 6wks (won't be happening). Please don't tell me I'm stupid I genuinely want what's best for them. We have done so much research on guinea pigs but not pregnancy. I just need advice, thanks all 