Hello, this is my 1st year with sheep. I have 10 ewes that are about to lamb. My first one had a lamb Tuesday night. This lamb is doing fine. The ewe had what I thought was afterbirth that wouldn't pass the next day. She was up and about and taking care of her lamb. The next morning I checked on her and next to her was a stillborn twin in an unopened sack. I opened the sack to look at the lamb. He was pretty good size, but had hardly any hair at all. I'm not sure when he died. Should I have done something earlier or was this just a natural thing. The mom is a yearling.