Effects of Being Underweight Before Pregnancy
When a woman who is underweight or malnourished becomes pregnant, it is essential to address any pre-existing nutritional deficiencies. Pregnancy can further worsen these deficiencies due to the physical demands of gestation, leading to potential health problems for both the mother and the unborn child. Research indicates that an underweight mother who lacks essential nutrients like folate, vitamins B6, and B12 may face challenges in maintaining a healthy pregnancy until delivery.
Weight Gain in Multiple Pregnancies
Over the past thirty years, the occurrence of twin and multiple pregnancies has significantly increased. This rise in multiples can be attributed to various factors, including additional maternal tissues, the weight of other fetuses, and the increased size of the uterus, all of which contribute to extra weight gain during pregnancy. It is crucial for expectant mothers of multiples with a normal BMI before pregnancy to aim for a weight gain between 37 and 54 pounds throughout the pregnancy period.
Research indicates that women who gain less weight than the recommended amount for multiple pregnancies are at a higher risk of experiencing preterm deliveries. On the other hand, women who adhere to the recommended weight gain guidelines during their multiple pregnancies tend to have longer gestation periods and give birth to babies with higher birth weights.