First, the placenta is abnormal.
Most pregnant mothers' placentas are normal, but some pregnant mothers find their placentas abnormal for various reasons, mainly in the position of placenta, extraplacental or placental abruption. Some pregnant mothers often have lower body bleeding, but they don't feel too much pain, so it is likely that the placenta is outside; If the pregnant mother is affected, her mood changes greatly or other factors such as shock, it is very likely that placental abruption will occur. Pregnant mothers have such placental abnormalities, and more exercise is likely to bring certain risk factors to their babies.
Second, threatened abortion.
The average pregnant mother must pay attention in the first trimester, because the image of the fetus is not so stable during this time. However, some pregnant mothers have threatened abortion, which is characterized by lower body bleeding, stomach pain and other abnormal conditions. At this moment, pregnant mothers must pay attention to their daily needs, otherwise it is likely to put the baby in danger.
Third, false contractions in the third trimester.
Pregnant mothers with work experience know that there will be a situation called pseudo-uterine contraction in the third trimester, that is, there is no labor, but pregnant mothers can feel some similar uterine contractions before labor. This feeling is usually very obvious at night, but it is not a sign of the baby's birth. Pregnant mothers who feel this way are not suitable for too much fitness exercise.