Do I ok to use eggs after 3 month they been laid?!

Break the egg into a bowl if they smell good then use them. Chances are they will be very liquid. I wouldn't chance it though. If you have chickens surely they can make you some more fresh soon.

They will be fine for cooking unless they have gone bad. There is no mistaking a bad egg which you can smell even without cracking it open! To make sure that each one is OK, crack them into a cup one at a time. Empty the egg into a bowl then crack the next egg and continue like this until you have all the eggs. Then to whisk well before using to bake. They may appear to be "watery", but as long as they smell OK that does not matter for cooking. Good luck!

Put them in a bowl of water if they float, they are bad.

3 months is too old. Throw them out.

breakn an egg into a bowl and see what it looks like. Id say theyd be ok because you can keep eggs at room temputure for ages.

cup-a cake r what is done