Mine goes up at the doc too. We have a checker at home, so I keep up with it. For a couple weeks before a check up I start writing it down to give them a better picture of whats going on.
Not sure how much weight I've lost this period yet, but at least I know my efforts are paying off in other areas for sure. I think the ab exercises have toned me a bit even if I haven't lost a lot since clothes are fitting noticeably looser. Been a positiive day. Got a little down this week, as I kept running across those videos where people claim major changes over 90 days. I know its BS, or at least toning up muscle bulk, but it still had me questioning my effectiveness.