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.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...
Keep the hopes up. My NOC also same as yours. 2173- Software Engineer category.