The first trimester, which spans roughly from month one to month three, is the most critical period during pregnancy.
This period is crucial for several reasons:
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Major Development: During the first trimester, the baby's major organs and body systems begin to develop. This makes the developing embryo particularly susceptible to damage from things like infections, medications, and environmental hazards.
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High Risk of Miscarriage: The majority of miscarriages occur during the first trimester. This is often due to chromosomal abnormalities in the embryo.
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Significant Changes in the Mother: The mother's body undergoes significant hormonal and physiological changes to support the pregnancy. These changes can cause symptoms like nausea (morning sickness), fatigue, and increased urination. Proper prenatal care and a healthy lifestyle are vital during this time.
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Vulnerability to Birth Defects: Many birth defects originate during the first trimester as the baby's organs are forming. Avoiding harmful substances and ensuring adequate intake of folic acid are essential for reducing the risk of birth defects.
While the entire pregnancy is important, the first trimester lays the foundation for the baby's healthy development, making it the most critical period.