The expected date of delivery is around January 18th of the following year, on April 11th of your last menstrual period. The due date is calculated from the first day of the last menstrual period, using the month of the last menstrual period plus nine or minus three, and the number of days plus seven to calculate the due date. The entire pregnancy lasts about 280 days, or nine months and ten days, or 40 weeks, and your last menstrual period was on April 11th, so your due date will be around January 18th of the following year. However, due to the different physique of individuals, the length of the menstrual cycle is different, so there will be changes in the presumed due date and the actual due date, which is a normal phenomenon. During pregnancy, it is important to maintain an optimistic mindset, take proper exercise to improve your physical fitness, and eat more protein-rich foods, such as eggs or lean meat, to replenish the nutrients your body needs. If you feel unwell during pregnancy, please go to the hospital for consultation.