Are you sure your period was on April 7th? I think you may have misprinted it. Anyway, if you are not on any birth control and have regular cycles, then, well, your one-day cycle could well be an implantation
bleed. You should repeat your tests with a fresh sample of early morning urine after a week of your period. You may also get a blood test
f needed followed by a sonogram. See your consultant for further advice. Wish you good health.