How long a grade 2 placenta lasts at 38 weeks of pregnancy cannot be generalized and depends mainly on the presence of labor signs. Placenta maturity can be divided into 0, 1, 2 and 3, and placenta level 2 means the placenta is mature. If you are 38 weeks pregnant and the placenta maturity is grade 2, how long the pregnant woman can hold on to give birth is mainly related to whether there are labor signs or not, and the time of delivery cannot be judged by the placenta maturity. The common signs of labor include redness, water breaking and abdominal pain. In case of redness, the fetus can usually be delivered within 3-7 days; in case of water breakage, the fetus needs to be hospitalized and induced by oxytocin under the guidance of an obstetrician; in case of regular abdominal pain, the fetus can usually be delivered within 1-2 days. In addition, some preterm fetuses may have a grade 0 placental maturity, while some overdue fetuses have a grade 3 placental maturity and still have not initiated labor. Therefore, no definite value can be given as to when a pregnant woman with a grade 2 placenta at 38 weeks of pregnancy will deliver.