Daphne, also known as dextroprogesterone, is a near-natural progestin that is mainly used in the treatment of progesterone deficiency disorders and can be used to regulate menstruation and protect the fetus. Side effects are not significant when using this medication, as it is a near-natural progestin that is not very different from the progesterone in the body. Mild dizziness, weakness, nausea, and vomiting can occur during application, but these side effects are very mild. It will not increase the incidence of fetal malformations during fetal preservation, so it is very safe to use this drug for fetal preservation and there is no need to worry about it.