Ovulation question.

Kendra

Hubby and i decided to try for baby #3 i had my iud out on the 23rd of october. Started my period the 24th thru the 30th. I started <a href="https://play.google.com/store/apps/details?id=com.glow.android">tracking ovulation</a> today but.it says low. Supposed to ovulateon the 10th of November. Is it too early to get a dark line. I never really understood how to track ovulation.