It's not unusual to not have dropped a size yet! I lost almost 40 lbs before I dropped a size, but I was a bit larger then you, I started out @ 231. The smaller you get the quicker you will drop sizes. I'd say give yourself another 10 lbs or so, you will def need new clothes by then & you will certainly see the difference... whatever you do, DO NOT GET DISCOURAGED & GIVE UP! Keep up the good work, your doing awesome!