![]() Disruption of nutritional factors in some cases leads to premature birth. Nutritional status: Malnutrition in the mother leads to a lack of intrauterine growth of the fetus and a delay in the date of delivery.Maternal weight before pregnancy: Underweight or obese women before pregnancy lead to premature birth.The number of previous births: The probability of termination of pregnancy before 40 weeks is greater in the first pregnancy and in cases of more than 4 previous births.Maternal age: The incidence of problems leading to premature termination of pregnancy and childbirth increases when the mother is over 35 years old or under 18 years old.The duration of pregnancy and the rate of fetal growth vary depending on a number of factors, including: Pregnancy continues until the fetus's organs are fully developed and able to live outside the womb, and most importantly is the maturity of the lungs and the child's ability to breathe spontaneously and naturally. The reason is not known precisely, but hormones are the most contributing to the occurrence of fatigue during pregnancy. This includes an increase in the number of hours of sleep during the first trimester of pregnancy and rapid fatigue when doing daily activities and chores. ![]() Fatigue: Rapid fatigue is one of the symptoms of pregnancy as well.Nausea, vomiting, and dizziness: It is one of the most common symptoms of pregnancy, as morning vomiting begins during the first month of pregnancy, and vomiting can occur during any time of the day and as a result of any reason.Breast swelling and engorgement: The rise in female hormones during pregnancy causes engorgement, tenderness and an increase in breast size.Absence of a period: It is the first sign of pregnancy when a period is absent and does not occur at the expected date and for a week after it in a woman of childbearing age, it is likely that this is one of the signs of pregnancy.Pregnancy does not have to last a full 40 weeks or 280 days, as the duration of pregnancy varies greatly from one woman to another with many different factors.Īt the beginning of pregnancy, some symptoms and changes appear that may indicate pregnancy, and the cause of these symptoms is the hormonal changes that usually accompany pregnancy. ![]() Pregnancy begins from the first day after fertilization, and fertilization occurs in the last section of the fallopian tube, and the fertilized egg grows to go through several stages during the days following fertilization.
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