Currently, I am in IP1, AOR is July 24th. Yes, I do have ordered GCMS notes, but didn't receive yet. My case also similar to you. One dependent, and minimal travel history...
Since of late, most Sri Lankans have hit the 5 months mark before PPR. I know couple of them even without any dependents. Lets hope for the best. Before end of December, you will definitely hear a good news.
Keep the hopes up. My NOC also same as yours. 2173- Software Engineer category.