Like others said, take photos, take measurements etc. Also, sometimes our bodies lose in funny places. My face lost quite a bit initially, I've also lost quite a bit in my bra band size while everything else was staying the same. The more measurements you take the more you see weight loss in unexpected places. Some women even report losing a show size and often even your hands lose weight!
I'm not sure what you're doing in terms of exercise but heavy weight lifting can make a world of difference in terms of inches lost. Personally, I have pictures of myself at the same weight before/after with weight lifting and there is a very noticeable difference.