First of all thanks to Haider for initiating this page and to other members who contributed in this....
Like other, I was also bit skeptical about the process flow of PR process for those who deferred X-ray due to pregnancy. This page was very helpful.
As my contribution to this page....
Below please find my timeline, which can guide others about the various stages and time involved....
ITA: 25 April 2018
AOR: 15 July 2018
Medical under Review and IP1: 1 August 2018
IP-2: 7 Nov 2018
Received ADR for new born documents on 7 Dec 2018
(although due date on pregnancy deferral letter was 29 Dec 2018, they sent the letter earlier even before baby's birth)
New folder in submitted application was provided to upload the documents and deadline for documents was 31 Jan 2019.
Documents requested by them included Passport, Birth certificate, Additional Fee receipt (150 CAD), IMM0008 and IMM5406 forms.
Baby born on 11 Dec 2018
Wife's Xray done on 19 Dec 2018
Medical Passed on 23 Dec 2018
Baby's documents were uploaded on portal on 21 Jan 2019 ( In addition to requested documents, I also went for baby's upfront medical and submitted that also)
CIC account updated on 24 Jan 2019 (i.e. Baby's name along with her UCI reflected under dependent list and also status of ADR changed to "We are reviewing the documents you have provided"
Presently waiting for further update and PPR (will update as and when updation happen).....
Meanwhile on 20 Nov 2018, I also applied for GCMS notes thru ATIP, but not received them till date....