Af is late!!

Jasmine
AF was suppose to show up on the 7th according to glow. I got my mirena removed in December and I think it messed my cycles. I still haven't got my period I took a pregnancy test 3 days ago and it was negative but for the past two weeks I been getting migraines and fatigue. I don't know what's wrong I swore I was pregnant. Any one else had problems after mirena removal?? Help!!