Dydrogesterone tablets can be used to protect the pregnancy. Dydrogesterone is a natural progesterone, and low progesterone can increase the risk of preterm miscarriage during early pregnancy, so appropriate supplementation of dydrogesterone can be used to protect the pregnancy in high-risk groups. Didrogestrel tablets can be used in early and mid-pregnancy, but should be used under the guidance of a doctor. As drospirenone is a progesterone preparation, a few pregnant women may experience nausea, vomiting and dizziness after taking it. These symptoms have no effect on the body, so consider taking progesterone tablets half an hour after meals, which can appropriately relieve the symptoms.