Ovulation tests

Brittnie • Happily married. Mama to an angel baby 👼 11/10/19 👣 Rainbow baby 8/21/21 💙 baby girl 8/26/23

I've never done ovulation testing before. My OBGYN requested that I chart for the next three months... I feel like I might of already ovulated or maybe I haven't. My calendar says I ovulate next week Oct 16th.. Sat Oct. 10th is the only one I've gotten two semi dark lines... I know the test line has to be either dark as the control line or darker. Im just not sure... Losing hope 😔