pills contain high doses of hormone and as a result, create hormone disturbances. This results in withdrawal bleeding, delayed cycles and if used frequently, problems related to fertility
due to disturbed ovulation status. A trans-vaginal sonogram and hormone profile are needed to assess your present situation. Withdrawal bleeding can be expected to happen 3-7 days after completion of hormone therapy
. Meanwhile, try to maintain a healthy weight, healthy diet and regular exercise. Hope this helps.