What Kind of Bug Is This?
Very shiny to be a flea. Most tend to be more brown. Someone remarked it could be pregnant flea... is possible. Could also be full of blood. Fleas can get in homes even with no pets. They hitch rids on clothing, baggage, shoes. If you do have critters, flea...
What Kind of Bug Is This?
If you are anywhere near a University they may have an entymologist that can help identify.