You can definitely pump in labour if you want to. You're allowed to do anything you want - or at least you should be! But unless you need to intensify contractions and speed things along, I probably wouldn't. Pumping during labour or any sort of nipple stimulation should bring on stronger, faster contractions. This is good if labour is stalled and there is a reason to speed it up again (just being stalled isn't a bad thing, labour can stop and start and slow and speed up and that's all normal). But if it's just for the purpose of having milk stored up for after, not to strengthen contractions, then I wouldn't as it might just make things harder for you when labour was already moving along just fine. That said, babies don't need milk the second they pop out. It's good to get them feeding in the first couple hours, yes, but if you really can't get baby latched for some reason after birth, you can always pump or hand express then. I spent a good week hand expressing into a cup. I wouldn't have wanted to pump in labour though. There is some information out there on expressing in late pregnancy and if you are term and you have a reason to and are being supported in doing it, I can't see why not? But I wouldn't want to actually be pumping in labour. There's enough going on already.