Update on my weight lost

As female or at least I know I do we pay too much attention to the scales.  But sometimes when the scales don't move like we think they should we become frustrated and give-up.  I know I am bad about it.  This week I think I've done good but the scales doesn't reflect it.
I have found an app on my Nook tablet called Loseit.  I can keep a record of what I eat and my exercising.  And on the days that I exercise I seem to eat less, because I either burn more that I eat or don't miss it by much.
For Valentine's Day I told Scott not too buy me any candy and he didn't.  I told him what I really wanted was to start going to the gym here in town.  It's an all women's gym and I love it.  I got 7 days free to see if I would like it.  And I did so this past Monday I joined.  I hope to get to the point where I can go 6 days a week,  this week I made to 4.  The gym has helped me feel so good about me.  I can't remember the last time I felt this good about myself.
I started out doing 5 minutes on a stationary bike, then twice around the exercise circuit, and finish with 10 minutes on the treadmill.  I am now up to 10 minutes on the bike, twice around the circuit and 45 minutes on the treadmill.  In distance I made a mile and 3/4 this morning.  I looked up a 5K walk and told Scott that's only 3.1 miles.  I'm halfway there.  So that's something else I would like to do in the near future. 
I will get weighed and measured again at the gym on the 12th.  So I'm excited to see how much difference there isI know I have dropped one size so far.   But if I did look at the scale I have lost 21 pounds so far.  My goal when I started was to lose 20 by the time I go back to the Doctor this month.  Whether I come off the blood pressure medicine this month or 6 months from now.  I'm not stopping until I reach my goal weight.