The manner of giving birth is so weird

I think they're coming out from her but though, (⊙…⊙ ) not sure if that's better or worse

Eggs are not already hard when laid and this story is full of magic. They're magic-based babies so just imagine her tummy getting round from pregnancy-related accumulated magic, accumulated magic getting out of her tummy from bellow and forming an egg, and egg forming a baby inside and breaks after the whole process. All in a matter of seconds (▰˘◡˘▰)