👉 The pregnant fluid, also known as amniotic fluid, is a vital component of the uterus during pregnancy, primarily composed of water, electrolytes, proteins, and fetal cells. It forms in the uterus between the 11th and 28th week of gestation, filling the amniotic sac that surrounds and protects the developing fetus. This fluid serves multiple critical functions: it cushions the baby against physical impacts, facilitates lung development by allowing the fetus to practice breathing movements, aids in temperature regulation, and provides a medium for fetal movement and sensory stimulation. The volume of amniotic fluid typically increases over the course of pregnancy, reaching its maximum by around 32 weeks.