Missed period!

I recently missed my period I’m 8days late which is a first for me. My last mensural cycle was irregular which hardly ever happens either . I took a test on my 7th day of being late and it came out negative. I am recently recovering for Covid 19 so I don’t know if my medications there off my period. But even before I contracted Covid my last period was irregular I bled only 2days lightly and stoped for 3 and then bled once more.