I don't think you should worry too much about it. I know that's easier said than done, but they most likely received a lot more applications in January than December. I emailed them around the 6th week to ask if everything was okay with my application because I hadn't heard anything. They responded and informed me that a decision was being made on my application that week. Hopefully, you could get them to tell you something like that.
I can't wait to hear from SSA though. Their open house was so impressive. I just can't wait to be back in Illinois!