Not blaming you for this, I feel like the BC data is harder to sort out the active cases, but 12 sounds off -
15 recent COVID-19 cases in B.C. linked to 30-person family gathering - Abbotsford News
Also looking at their dashboard, total cases - recovered - deaths = more unaccounted for.
BC does overall look pretty good though. I'm concerned about the numbers in Edmonton - we were in the 40s-50s for active cases for quite a while, it jumped to over 100 a few days ago, don't remember the specific date especially as I catch some of the updates live and watch some a day late, it's been discussed though. Today it's 130.