The development of various organs of the fetus. The fetus continues to develop during pregnancy, making it very close to a complete baby at eight months. At this time, the fetus\’s body and organ development are very complete, including systems such as the heart, lungs, liver, pancreas, kidneys, anus and external genitalia, and are all capable of functioning. However, even if the body\’s organs are complete, it is important to consider whether the weight and size of the fetus poses a risk to the maternal birth canal. If a pregnant woman\’s birth canal is too small, or the fetus is too large, it may prevent vaginal delivery.