ovulation days but negative ov test?

Ka
Hi everybody!! I just started trying to have a baby and just started charting my ovulation days. I've taken 3 ovulation test the past couple days and they are negative I have one dark line and one faint line but it's there so I'm just confused? My chart says I'm ovulating...but maybe I missed it? I've still been having sex every other day since my last period and have also been charting my temperature and it's been a bit higher the last few days! Any advice would be great I'm very new at all of this!