is the most common cause of a missed period.
If you are not pregnant, other causes of missed include: Excessive weight loss
or gain, Increased exercise, emotional stress
, illness, travel and medications.
Restoring your life to emotional and physical balance can help. Many women miss periods now and then. Unless you are pregnant, chances are your cycle will return to normal next month.
Get an USG done to rule out follicular ovarian cyst
for which no treatment is necessary.
In your case Stress, Kidney infection
and antibiotics may be cause of delayed periods. You can wait for one more week and consult your doctor for menstrual regulation.