Dog Rocks Â® are a 100% natural, paramagnetic igneous rock mined from a quarry in Australia. They contain no chemicals and have been scientifically tested and proven safe for all pets.
In brief: Water. Free fluid is typically water. The lining of your abdominal contents are slippery (your bowel, the lining of your organs) and it's thus wet inside your abdomen. It's normal to have a little free fluid in one's pelvis, as that's where fluid tends to pool.
In addition to providing the fetus with physical protection, the amniotic fluid is a medium of active chemical exchange. It is secreted and resorbed by cells lining the amniotic sac at a rate of 500 mL/hr at term and is swallowed, metabolized, and excreted as fetal urine at a rate of 50 mL/hr.