You could potentially apply as married but with the proof of ordering the marriage docs.
Instructions during covid are a bit contradictory and say you should not submit without required documents BUT if you have ordered docs and they are delayed 'due to covid' you can send the docs later.
Here's what the official page says:
"If you apply, you still need to submit a complete application. This means you must include all the supporting documents we ask for. If you can’t get some of these documents right now, you should wait to apply until you can get them.
If you already applied for a document but it’s delayed due to the COVID-19 pandemic, you can send proof that you’re trying to get it (like a receipt). Include a letter to tell us why you don’t have the document and when you’ll get it. Send us the document as soon as you have it to avoid more delays."
https://www.canada.ca/en/immigration-refugees-citizenship/services/coronavirus-covid19/immigration-applicants.html#not_applied
Normally this would not be recommended and I don't know whether the eight week delay is 'due to covid.' With the current delays in even opening and evaluating the files, it's possible you would have the required docs before it became an issue.
Perhaps others here can comment from more experience. (I'm not recommending as I do not know, just providing the info)