So at this moment, you should have lost 3 lbs so far?
The problem with exercising is that our body has a natural way to resist change. As long as you do not subconsciously add those calories back into your diet, you should be well on your way!
Lets also not forget that you are adding muscle mass as well, so weightloss figures would be off as well.
I always hate calculating calories burned from exercise as the math never equates to reality. The human body is too complicated to perform a simple algebra formula for results. More importantly, its how you look and feel that makes the difference. Personally, I've added shovelglove and urban ranger to my nonexistent exercise routine before and I look healthier but the scale fails to represent this without fail. Every time my pants try to fall off, that's knowledge enough that I'm doing something right!
Most important thing is to keep on doing what your doing! Good luck!