Progesterone is a natural progesterone that can help the endometrial lining to grow and promote menstruation when taken orally, and must be taken on time and in the right amount. As progesterone is taken to promote menstruation, it is important to see if the missed dose is more than 12 hours, if not, it is possible to make up for the missed dose, otherwise, if progesterone is missed, there will be the early arrival of menstruation or abnormal bleeding. Oral progesterone for pre-eclampsia can play the role of luteinizing support, to achieve the role of fetal preservation, for fetal preservation progesterone leakage, also if there is no more than 12 hours, is also possible to make up a dose, itself is in the preservation of fetus or the existence of pre-eclampsia or bleeding, abdominal pain, this time if leakage, will also cause more bleeding, so as far as possible to choose to make up a dose, otherwise it will also affect there The excessive bleeding can affect the health of the fetus.