It is possible that a cold may cause a delay in menstruation because the body will be uncomfortable after a cold, and also clinically treated with appropriate medication, which often leads to a delay in menstruation due to emotional and physical changes, which is normal. If your period is delayed for 7 days after a cold and still does not come, it is advisable to pass an early pregnancy test to rule out the possibility of pregnancy. If your period is delayed and pregnancy is ruled out, you can drink hot brown sugar and ginger water, which has the effect of dispelling cold and warming the uterus, as well as promoting menstruation, and it is recommended to drink a bowl of it every day for 3 days. If you still do not have your period on the third day, you can take progesterone orally to promote menstruation, once a day, 2 capsules once, for 3 days, and your period will come 3-7 days after you stop taking it.