Ovulation time

Crystal • Learning and growing everyday as a person 😊
I last had my period November 20 and I was finished 5 days later. I started taking my ovulation kit November 30, yet on Glow it says I should have ovulated 3 days ago? This is my first time using the ovulation kit and I'm a bit confused. I've gotten no positive LH surge. Did I take the test late? Just an FYI my period is regular. Any ovulation info would be helpful!