Generally after seven days of progesterone injection progesterone will rise about 10ng/ml, but there will be individual differences. When the patient in early pregnancy paroxysmal abdominal pain, vaginal bleeding and other symptoms of preeclampsia, and progesterone test suggests that the luteal function is insufficient, you need to actively preservation of pregnancy under the guidance of the doctor, can be given progesterone injection seven days after the re-examination, the general progesterone will rise about 10 ng / ml, and ultrasound ultrasound examination of the embryonic development of the embryo is good, and the symptoms of miscarriage is also relieved or disappeared, then you can continue the pregnancy. Contraindications such as severe hepatic impairment should be ruled out before intramuscular injection of progesterone, and adverse reactions such as nausea, dizziness, headache, and formation of localized hard nodules at the injection site may occur after intramuscular injection. Abdominal pain, vaginal bleeding and other symptoms of preeclampsia, but also clear luteal insufficiency can be given under the guidance of the doctor, such as progesterone and other drugs to protect the fetus treatment.