In March I had a regular 7 day period 3rd to the 9th. In April I had a short light light period, from 26th to 30th, then in May I had two days of light light blood then one day of a lot of brown then two days of light light blood then two days of little brown. This month I have not started yet. On the second I had a spot, the size of a pinhead, on the 2nd of June. I took a test this morning , June 5th, it was negative. What is going on ??