If you sent your return in by mail, it may be delayed due to the effects of the Covid emergency.
If you sent your return via NETFILE, it would normally have been received within minutes, and you would have gotten a confirmation number. If you didn't get a confirmation number, then your return likely wasn’t filed. This FAQ tells you how to find your NETFILE confirmation number: https://turbotax.community.intuit.ca/community/after-you-file-questions/help/how-do-i-find-my-netfile-confirmation-number/00/873726