Gender reveal based on sneak peak?

Kourtney

Going to be doing sneak peak at 11 weeks. Plan to basically sterilize the entire area and my hand etc before doing the test. I've seen some inaccurate results especially boy. Should we do our reveal based on sneak peak? Ild hate to have this whole get together and spend money on confetti cannons only to have the wrong gender! This baby was looong awaited for I want everything perfect :/