Many ladies choose to confirm with a digital. I've never used one, but I had good experience with the Clearblue Easy OPK, so I'm likely to go with that brand again.
These are the digitals I get. I only have them because I want to see "PREGNANT" in big letters. When I got a positive on my Wondfo at 12dpo, it still took a couple of days for the digital to pick it up. $12 for 3, still a decent deal.
Wondfos are great if you like to poas frequently. I would follow up with a digital (clear blue easy) to confirm if you get a positive with a cheapie test.
Awick, is there an Amazon for Canada? They might have them.
Wondfos are definitely good (the OPK, HPT combo pack), but the HPTs can have super duper faint lines if you like to test early, so I definitely recommend you have a few digital tests in hand in case you think you see a faint line on a wondfo:-)