Late period

Su

Hello ladies. According to clue and glow, my average cycle length is 30 days. This is mostly true. I expect my period to come any day from day 27 to day 32. My periods are nasty; not very painful but so so heavy. I go through at most 40-50 pads a cycle, for 7 days of bleeding.

I’m 6 days late now at the most, 3 at the least but based on last period I’m 4 days late.

My partner had a vasectomy almost 3 years ago so I can’t be pregnant, although I did do a test on Wednesday night and it was negative.

Anyone else experienced this?