Congratulations! I know how you feel--believe me! Been playing the scales game a lot lately myself, LOL.

If you have problems with water retention, drink extra water, even if you're drinking a gallon a day drink more. My body just loves to hang onto water--uses any excuse it can muster. I try to limit salty foods and whenever I eat fast food and such, I always prepare myself mentally for the water weight gain--it invariably happens.