How to tell if I'm hatching twins???

[AltonaAcres]

Man, it's moving a lot! And pretty much constantly. Is this normal for an egg on day 18? I have had wigglers on days 20 or 21 but never this early. I am SO curious to see what happens........

 

[RinaRoo]

What did happen?

 

[AltonaAcres]

It hatched but was just a single chick

 

[Rakaiachick]

One chick that awesome still. Congrats . Made for an interesting topic as I didn't realise twins could happen in a chicken egg or any egg for that matter.