Don't feel down, please! One lousy pound means nothing on the scales, can be the result of swigging an extra couple of glasses of water or something totally inconsequential. Eating the extra fruit and veggies could temporarily account for it. I know I'm up to 7lbs heavier later in the day than I am in the morning - I scoff an incredible amount of water-laden foods.
Don't let that scale toy with your emotions. Seriously, if it's getting you down I'd think about putting it in the dustbin and just relying on a tape measure and the occasional weigh-in at Boots.