Thank you for sharing your timeline. I have submitted all my documents by Jan 12th 2018 (Jan 15th was the deadline). I submitted my PCC on 14th Feb.I am a single applicant btw.
Please check the "Background Status" section in your profile and check the wordings in that post. That will tell you the stage you are in.
The official timeline for the processing is 6 months from the time you submit all the documents; but your mileage may vary.
Each application is unique and no one can guess the timelines of a particular application.
So, sit tight and hope for the best.