Question

Which developmental milestone occurs at the end of the first month of pregnancy?

Options

• Development of limbs and digits

• Formation of the heart and detection of heartbeat

• Formation of eyelashes

• First fetal movements felt by the mother

Answer 1

At the end of month 1, the embryo's heart is formed—the first major organ to develop. The heartbeat can be detected using a stethoscope, serving as an early indicator of development.