Don't give up! It sounds like you are retaining water. Try drinking more water (sounds counterintuitive!) as it will flush you out. You might have eaten something particularly salty?
WW works-- you may not see losses every week but you will lose. Make sure you are following ALL of the Good Health Guidelines too. Good luck! I lost my weight on WW and I'm still below goal over 2 years later.
2016 workout goals: (edited)
100 Bikram yoga classes mimimum
365 workouts minimum
103 bikram yogas
350 total workouts