Pregnancy is divided into three trimesters, each marked by significant developmental milestones:
First Trimester (0-13 weeks): The embryo undergoes organogenesis, forming most of the major organs and structures. Second Trimester (14-26 weeks): Fetal growth accelerates, and movements become noticeable. Key developmental milestones include the development of the central nervous system and the ability to survive outside the womb if born prematurely. Third Trimester (27-40 weeks): The fetus continues to grow and mature, gaining weight and developing the lungs and other vital systems in preparation for birth.
