Pregnancy is an exciting and anticipated process. It is important for expectant parents to understand the pregnancy cycle and when to expect the birth of their child. Generally speaking, the pregnancy cycle is divided into 40 weeks, starting from the first day of the last menstrual period. This cycle is also divided into three stages: the first, second and third trimester. The first trimester begins on the first day of pregnancy and ends at the 12th week. During this stage, the fetal organs begin to form and undergo a series of physiological and psychological changes. By the end of the first trimester, most of the fetus\’s organs have formed and the fetus is about the size of a lemon. [The most complete and best sound quality in history] 32 sets of 100 must-listen late pregnancy music for prenatal education for free during the second trimester from the 13th to the 28th week. During this stage, the fetus\’s body begins to grow rapidly and fetal movements can be felt. In addition, pregnant women may experience some physical changes, such as the perception of fetal movement and the pleasurable feeling of fetal movement. By the end of the second trimester, the fetus is about the size of a cabbage. The third trimester begins at week 29 and lasts until delivery. During this stage, the fetus continues to grow and prepare for birth. Pregnant women may experience some discomfort, such as fetal pressure and back pain. By the end of the third trimester, the fetus is about the size of a pumpkin. However, it’s important to note that every pregnant woman and every fetus is different. Some pregnant women may go into labor early, while others may go into labor late. The due date is calculated based on the first day of pregnancy, but it is only an estimate. The actual time of delivery may be earlier or later than the due date. In addition to the length of your pregnancy, there are other factors that may affect when your baby is born. For example, the age of the mother, the health of the mother, and the health of the fetus may all have an impact on the timing of delivery. Therefore, pregnant women should have regular prenatal check-ups and communicate with their doctors to ensure the safety of mother and child. To sum up, the pregnancy cycle is generally 40 weeks and is divided into three stages: the first, second and third trimester. However, every woman and every fetus is different, so delivery times may vary. Pregnant women should maintain communication with their doctors and have regular prenatal checkups to ensure the safety of mother and baby.