Help can anyone give me an answer about food allergies?

Ok, at my house theres a pecan pie in the refrigerator just calling my name! I WANT TO EAT IT SOOO BAD. The only thing that seems to stop me is that im allergic to peanuts. BUT im NOT allergic to cashews or almonds, and i thinking pecans because i do remember eating one once, but im not sure and i don't feel like getting hives right now if im wrong. Can anyone help me? should i try a bite of the pie or leave my stomach empty?