Trying to understand the best time to try

Ok Sorry if this is annoying but with my first baby we weren't actively trying so I didn't track ovulation.

I tracked my last cycle with the strip tests and my peak and Feb 15. We had sex the days leading up and day of.

I don't think we got pregnant this time around which is fine I just want to make sure I'm tracking correctly.

My period should start Friday but my tests this week have been negative.

Did I track correctly?