take measurements - either fat calipers or just tape measure for several sites and track those - you don't really even have to calc the BF% to use calipers - just track the changes/downward trends.
If you are using mybodycomp.com then you should be already familiar with taking measurements with the tape - just track those changes - but be very specific to measure the same spot each time - if you do biceps 1/2 way from elbow to shoulder - measure how far that is from your elbow crease so you can do it the same the next time.