I just started week 2 of Phase 1 and my weight loss has plateaued. I lost 4 lbs in the first 4 days, but haven't seen the scale move at all since then. It's a little discouraging. Is this typical? I'm wondering since I only have 10 lbs left to lose if I should move on to Phase 2 now, or stick it out with Phase 1 for another week.