Withdrawal bleeding occurs 3-5 days after completion of treatment and may take up to a week sometimes. Considering your age, dwindling hormones may cause the withdrawal to be delayed. If you do not get a period by the 15th of Feb., see a gynecologist for further management. Stress
, obesity and peri-menopause
can also lead to irregular periods
. Try to maintain a healthy body weight, avoid stress, do some regular exercise and eat healthy. Good luck.