How accurate is glow?

Ja

January 9th was my first period since September 5th, had a miscarriage October 10th so my period didn’t return for a while, how accurate is glow at <a href="https://play.google.com/store/apps/details?id=com.glow.android">tracking ovulation</a> and do I have a good chance if so? 🙏🏽💕