Introduction to key indicators of healthy fetal development at 15 weeks of pregnancy As the pregnancy progresses, the fetal body will continue to develop and grow. At 15 weeks of pregnancy, the key indicators of the fetus become a topic of great concern. The following introduces the key indicators of healthy fetal development at 15 weeks of pregnancy from four aspects. Body size: At 15 weeks of pregnancy, the fetus has reached 9-10 cm in length and weighs about 70 grams. At this time, the baby already has long arms