Period is over a week late

My period is now a week and 2 days late. Last week when i was suppose to start my period, i had the discharge I have when I’m about to ovulate so I took an ovulation test and it came out positive but I’ve already ovulated this month... I took a pregnancy test Saturday but it came out negative. My periods have always been regular. I’ve never been this late. Does anyone have any ideas of what’s going on? Could I still be Pregnant?