"Premature birth, quoted from Klikdokter, is a condition when a pregnant mother gives birth at less than 37 weeks of pregnancy or before the due date. There are several factors that trigger premature labor. Among them are giving birth too early, such as infections, genetic disorders in the fetus, uterine or cervical disorders, fetal growth and development disorders, nutritional deficiencies, and severe stress."

"Miscarriage is a condition where pregnancy ends on its own before reaching 20 weeks of gestation or in the first trimester. The causes of miscarriage can vary, such as genetic abnormalities in the fetus, infections during pregnancy, side effects of medications, problems with the uterus, or certain diseases, such as diabetes."

"Pregnant women who experience placental disorders, such as placenta previa and placental abruption, are often advised or recommended to limit intimate relations. The reason is that orgasms can stimulate uterine contractions, which may risk causing vaginal bleeding during pregnancy. When this occurs, the condition of the pregnant woman and the fetus can be problematic."

"Bleeding during pregnancy, especially in the first trimester, is quite common among some pregnant women. Usually, this condition does not need to be worried about, as bleeding in early pregnancy may indicate implantation or the attachment of the embryo (future fetus) to the uterine wall. Bleeding during pregnancy can also be a sign of a serious condition that may endanger the health of the mother and fetus. Especially if the bleeding does not stop or is accompanied by severe pain in the uterus. It is necessary to see a doctor."