You cannot make your period start on demand
Menstruation happens naturally as part of the menstrual cycle
If you have not started periods yet, puberty and hormones will begin them when your body is ready
If your period is late, pregnancy is one possible cause
Stress, illness, weight changes, intense exercise, and hormone problems can also delay periods
If you think your period is delayed, take a pregnancy test if relevant
If you have missed several periods, see a healthcare professional
If you want to manage or regulate periods, ask a doctor about safe options
If you have severe pain, very heavy bleeding, or sudden changes in your cycle, seek medical care