When i was 2 days late I tested and it was negative but i saw a vvvvvvvfl after 10 mn way past the time required so maybe it was an evap line.

7 days late i tested again and it was negative (i think it was a dye run becuase i got a vertical line on the c line and a horizontal line on the t line.

And again 9 days late, tested again. BFN.

someone help me i dont know why my period is like this, all my life i neber experienced being late nor missed a month