Do they usually pip right side up or upside down?

[blasto]

I have two eggs pipping right now and one beak is upside down (and pipping out the upper side of the egg) and the other is right side up and pipping out the bottom. Normal? The upside down small end one pipped about 26-30 hrs ago.

 

[Katy]

They pip with their head kind of upside down with their head almost tucked under a wing. They should pip towards the large end of the egg. When they pip on the small end they sometimes don't have enough room to manuever around like they need to.