How to take progesterone for fertility depends on the patient’s progesterone level after pregnancy. If the patient’s progesterone level is not particularly low, greater than 20ng/mL, in this case it is necessary to take 100mg twice a day, if the patient’s progesterone level after pregnancy is very low, less than 15ng/mL, in this case the oral dose of progesterone can be increased to 100mg three times a day, many patients may experience dizziness after taking progesterone. If the dizziness is serious after increasing the dose and affects the patient’s normal life and work, it is recommended to maintain the oral dose of progesterone at 100mg twice a day, and at the same time, progesterone can be added by intramuscular injection at 20mg 1-2 times a day.