If it is time for your period and you still do not have it and you have pain in your lower abdomen, you must first rule out the possibility of pregnancy in this case. If you are not pregnant, you can boil hot brown sugar and ginger water and drink a bowl of it every day for 3 days. If you still do not have a period, it is recommended to take progesterone pills orally to promote menstruation, once a day, two capsules at a time. Since progesterone pills, clinically, can cause dizziness, it is recommended to take them orally again before going to bed, for 3 consecutive days, and your period will usually come in 3-7 days after stopping the medication. If the pain in the lower abdomen is not relieved while you are waiting for your period and has a tendency to get worse, you must go to the hospital for further examination.