So I was getting eggs from the lab and I filled my party. I went
back to my party and I saw this egg
https://pokeheroes.com/interact?id=27670381&action=direct
I have never seen this, is it normal to see this? and has anything
happened like this before with anyone?
That's a Skiddo egg. :)
Only very few Pokémon have egg sprites such as Legendary
Pokémon.
Skiddo and the Kalos Starters are some of these few Pokémon as
well.