While most pregnancies last between 37 and 42 weeks, others go longer. Post-term pregnancy is defined as one that lasts more than 42 weeks (past due). This only occurs in a few pregnancies. Even though post-term pregnancies have significant dangers, most post-term babies are healthy when they are born. Special tests might be performed by your doctor to determine your baby’s health. The likelihood of successful outcomes will be increased by closely monitoring the infant’s health. Many women who carry on past 40 weeks are not actually past their due dates. Simply put, their due date was incorrectly calculated. A due date is, after all, only an estimate. Your anticipated due date is determined by your last period’s first day, the size of your uterus (womb) early in your pregnancy, and an early ultrasound. It might be challenging to anticipate the due date for many women because they often forget the precise day of their previous period. The length of each menstrual cycle varies. Some expectant mothers choose not to have an ultrasound early on to determine their due date. Nobody can say for sure what causes a pregnancy to be post-term when it lasts longer than 42 weeks. For both you and your unborn child, there are higher health risks if you don’t give birth by 42 weeks. The link between you and your unborn child is the placenta. The placenta might not function as well as it once did as you get closer to your due date. The baby may receive fewer oxygen and nutrients from you as a result of this.