Suprise, suprise. What more can I say. Lisa-Jay, you hit it on the head. Birthing flat on your back, attached to monitors and full of drugs is hardly natural either.

Babies are born with what is called a dive reflex, basically their throat is closed off until they actually hit the surface of the air. Otherwise they would be aspiring amniotic fluids too. On a rare occassion if bub has had a hard time, or if the water's temp isn't warm enough it will startle bub, this can cause them to gasp, therefore taking in water. Of course if the mum is having that hard a time she should be removed from the water in any case.