En caul babies - weight loss

[Secondsop]

Hello, I was wondering if anyone had any experience of having had a baby born in the sac and whether this affected the baby's weight gain? My 10 day old was born in his sac and lost a lot of his birth weight and is only very slowly gaining, and I wondered whether an en caul baby might start out with more fluids in them at birth on the basis that they didn't lose any in the birth canal.