https://statstitch.etsy.com

Pregnancy entails profound anatomical and physiological adaptations across all major organ systems to accommodate a growing fetus over approximately 40 weeks. These changes are driven by an influx of essential hormones. Human chorionic gonadotropin (hCG) sustains early pregnancy, while progesterone and estrogen maintain the uterine wall, support fetal development, and alter maternal physiology.

Key Systemic Changes (The 20% that explains 80% of pregnancy symptoms):

• Cardiovascular: Maternal blood volume increases by 30% to 50%, boosting cardiac output and heart rate to meet fetal ox ...