I don't know what first void means? is that like first pee of the day? I woke up at 11:30 am today (had a party last night slept in.) and I am not sure if i peed or not but I will say my pee was REALLLLY bright and stinky. it definetally wasn't diluted. So does that mean that if I pee'd again it would test differently or etc? I have no problem getting another test for 15 bucks condering this new job is paying a LOT more than my old one, its worth it.