You cannot safely stop a period instantly once it has started
Use a heating pad on your lower abdomen
Take a warm bath or shower
Stay hydrated
Get light exercise, such as walking or stretching
Rest and sleep enough
Use over-the-counter pain relief if appropriate for you
Ask a doctor about hormonal birth control options that may shorten or lighten periods over time
Ask a doctor about prescription options if you need to delay or reduce bleeding
See a doctor if your periods are very heavy, very painful, or irregular