I came on my period on the 16th april and came off on the 20th but i'm bleeding again this is unusual for me what can it mean?

Could be : Mid-cycle vaginal bleeding could be a sign of ovulation. Sometimes the hormonal swings of ovulation result in vaginal bleeding. It could also be a sign of an infection, abnormal cervical cells, a side-effect of a medication, a pill taken late, or the onset of an illness like thyroid disease. If it continues, you need to be seen for a full history, exam, and appropriate testing. Hope this helps.

See below: You had an unusual menstrual cycle. However, unusual menstrual cycles don't necessarily mean that there's anything wrong physically. The menstrual cycle is under very delicate hormonal control, which can be influenced by things such as exercise, rapid weight change, emotional stress etc. . SEE: http://bit.ly/19cKee5 To be safe see your physician if you continue to have abnormal periods.