OK so I got my first period when I was 11 and it was 30 days long so my Dr put me on birth control pills for it til it was regular. Period were regular Fast forward to when I was 17 I had my first child then turn 18 two weeks later and my cycle was back to normal after having her. Fast forward some more had my second baby when I was 20 cycles got back to normal after her ok fast forward some more I turned 22 and had my implonon removed in hopes of getting pregnant went a whole yr without a cycle then I found out I was pregnant after my 23 birthday ok I had my baby June of 2015 had 4wks after birth then I got my period in August and September and October (turn 24) and November and in November 2nd I had my implonon removed and switch over to progesterone pills and stopped taking those two weeks in and had a period in December then I didn't get another cycle til last month in April 22 I am now 4 days late I took a test on the morning of the 19th but it was negative my question is what's wrong with me? I have always had normal cycles I don't know why I missed a year before I got pregnant with my son and I was regular til December and I thought I fixing to get back regularly.