okay well my hen layed 5 eggs all togethor and she layed her first egg on may 22nd and its june 8th today so it should hatch in between friday and saturday and the egg has become alot darker but i hope the egg hatches tomorrow so my question is is my times right it should hatch in between friday and sunday right ?

I heard it is betwwen 18 and 21 days after the egg is layed thanks for any info!

you are correct about 18-21 days and then after that they will hatch every other day. It is good to label your eggs, 1, 2, 3, etc with non-toxic marker and then you know which one to expect to hatch. Good luck and keep us updated.