Confused.. Need opinions

Chelsey • Wed, Dec 03 • Mommy to two awesome boys, one beautiful girl, & wife to an amazing hubby! 💗

So doesn't ovulation coincide with a dip in temp? I'm pretty sure I O'ed CD14 (because of symptoms & cm- didn't use opk's this month) & that's when I had a dip. So it would make perfect sense. But glow is saying I O'ed CD15. That doesn't make sense. Opinions?