Here are a few suggestions:
A way to add a feature if the baby is an egg and when it levels up it adds a crack image to the egg instead of making levels for the cracking.
When you feed the pet it should show how many more clicks it needs to hatch.
A way to add a feature if the baby is an egg and when it levels up it adds a crack image to the egg instead of making levels for the cracking.
When you feed the pet it should show how many more clicks it needs to hatch.