Best ovulation test??

Jessica • Mommy to a beautiful little girl! [7.11.16]
Does anyone have any recommendations on an ovulation test that worked well for them? I currently have the Clear Blue digital and I'm starting to think it's crap. My period just ended last Saturday and I took a test yesterday and got an O which means no ovulation. Today I took it and got a solid smiley which means I'm at my peak ovulation. I'm almost positive that's not accurate since my period just finished a week ago..