Is there a high chance of fetal miscarriage at 15 weeks of pregnancy? 15 weeks of pregnancy is an important time point. At this time, the fetus has begun to take shape, and various organs and tissues are also developing. For expectant mothers, special attention needs to be paid to the growth and development of the fetus and their own health at this time. So, is there a high chance of fetal arrest at 15 weeks of pregnancy? Let’s explore it together. Causes of fetal arrest Fetal arrest refers to the cessation of pregnancy development, resulting in the death of the embryo or fetus.