Ovulation test

So I am 4 days late for my period, and I thought I was taking a pregnant test(this was out of the box so I wasn’t sure if it was a ovulation test or pregnancy test) I realized afterwards it was ovulation test but I should not be ovulating right now according to the calendar, I was due to ovulate back in January, so I’m confused. I took a pregnancy test and it showed negative. Any advice?