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.
A placental abruption (abruptio placentae) is when a normally implanted placenta separates from the uterus after 20 weeks gestation (less then 20 weeks gestation is considered a spontaneous abortion). It occurs in approximately 0.5-1% of pregnancies in North America (Broers et al, 2004).he classical presentation is that a placental abruption is painful bleeding and a placenta previa is painless, however a woman with a placenta previa can also be contracting and thus can be in pain as well. A pelvic exam should not be done until a placenta previa can be ruled out as this can trigger further bleeding.