Do shipped eggs take longer to hatcg?

[EJBUSCHBACH]

Hello,
It's day 20 and about half of my non-shipped eggs have hatched and most the other half have pipped. However, none of my shipped eggs have pipped. I can see some moving, though. This is my first time getting shipped eggs and was wondering if they take longer to hatch. I had them upright for the majority of the incubation time so the air sacks could re-attach. i would have thought they would hatch sooner because they were closer to the heat source (I have a still air). I am wondering if they just are not as strong because they were turned less or they were overheated.
Should I put a safety crack in tomorrow if they still haven't piped, and they have internally piped?

I know it's still early, but they are just making me nervous because the others have all hatched or piped.

Thank you

 

[Wyorp Rock]

You're only on day 20.

I'd wait for a few more days.

Do shipped eggs take longer to hatch? Not in my experience. Usually between day 20-24 or so, just like from my own flock.