I took my test March 1st in Regina. My status is DM too. As far as I know, none of the folks following this forum who took their tests in Regina on those dates got an Oath invitation for Regina's next week ceremonies. I'm hoping for May...
I guess that would be the thought of those who got DM for March 2018 that they can not be included for the oath for March 26 to 29. My friends told me that there are 6 ceremonies in different time and days. Someone posted here as well that there is an Oath in April but in Saskatoon. I think you are right that hoping and crossing fingers that my friends, you as well and the rest who got DM in Regina will surely be included in the next batch by May ceremony. Hoping as well to those waiting for their test invite now on its way for them. I know the feeling of waiting. I would say keep yourself busy to avoid too much expectations in a day and make yourself happy, cheerful as time goes by. For sure, you'll be amaze that it is already in your hands. It happened to me and some of my friends, relatives, and to many as well years ago. Lucky for this generation that the wait is really shorter as compared to our time that it will take 1 year or more to be invited in a test and few more months to a year to get an Oath.
Bottom line, I keep telling my friends for a massive patience. Patience is really a virtue.
Thank you for your reply. Really appreciate it much.