Does anyone know if this is a bedbug? Or maybe a cockroach? I am located in Quebec, Canada.
If you need a clearer picture I'll try to take one without the glass in the way so my camera can focus better. Hopefully it doesn't escape.
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I think I can see 5 extremities sticking out under the shield on one side in your image. Hence I think it has a total of 10 extremities. A bedbug, belonging to the class of insects, should have just 6.
I'm pretty sure it's a pill bug (Fig. 1), a family of woodlice (Armadillidiidae), belonging to the isopoda, an order of crustaceans. Crustaceans include the lobsters, crabs and crayfish, to name a few.
Fig. 1. A Pill bug species. source: Natural History of Orange County, CA
A bed bug is an insect and has six extremities (Fig. 2).
Fig. 2. A bed bug species. source: Terminix
So long story short, your species here is not an insect, and hence not a bed bug.
From the limited amount of information you've provided a specific species determination is difficult; there are many pill bugs.
No, it looks like a woodlouse. They are perfectly harmless to humans, and feed on decaying plant matter. They are also called isopods, roly-polies, or pill bugs.