Congrats on the new lambs! I don't have a jug but I did cordon off an area - about 16x8' - and the new ewe and her lamb stayed there for the first 3-4 days and then I let them out to rejoin the flock. That worked for me. I did try after 2 days to let her out but the ram was way too interested in her and I could see the lamb getting hurt. Another couple of days and the pheromones had died down and the second time I tried to reunite them, it was completely peaceful.
My ram is still a bit of dufus. I don't think he realizes he is a ram yet.
So he is behaving well at this point. I'm just hoping he figures this out when it's time.
The ewe lamb is a little smaller than the ram lamb.
This morning all were doing fine.