You will probably not gain a pound. Technically speaking 3,500 calories above what you are supposed to eat in a day will cause you to gain a pound. Just for future reference, these extra calories do not need to be consumed in one day. Say your body need 1,200 calories to function, if you eat 500 extra calories a day without exercising or doing things to burn these extra calories, you will have gained a pound in 7 days.
if you get a job in england you will gain many pounds
STOP worrying about gaining weight. Just work out and eat healthy and you don't have to care about calories
You'll be fine. If you're really worried, starve yourself or eat a minimal amount and go for a slow 20 min run before bed. Oh and try not to eat at least 3 hours before your run
Gaining a pound is nothing.
I'm really worried. I ate 2000 calories today I'm 5 ft 4, 13, and female. Will I gain a pound??