But other types of lactobacillus have not been studied during pregnancy and breast-feeding, so their safety is unknown. Weakened immune system: There is some concern that lactobacillus from supplements that contain live bacteria might grow too well in people whose immune systems are weakened.
Occasionally, there is only the one single umbilical artery (SUA) present in the umbilical cord. Approximately this affects between 1 in 100 and 1 in 500 pregnancies, making it the most common umbilical abnormality. It is more common in multiple births. Its cause is not known.
Placental abruption. Placental abruption is a condition where a part of the placenta separates from the uterus during pregnancy. There are many blood vessels within the placenta that transfer nutrients from the mother to the unborn baby. If the placenta detaches during pregnancy, these blood vessels break, and thus there is bleeding. The larger the area that detaches, the more bleeding there is.