Early pregnancy tests work by binding the hCG hormone, from either blood or urine, to an antibody and an indicator. The antibody will only bind to hCG; other hormones will not give a positive test result. The usual indicator is a pigment molecule, present in a line across a home pregnancy urine test.
Gas and bloating is a sign that food is not being digested correctly by the body. An inadequate intake of water will cause excessive stomach bloating. Water benefits the body by aiding with digestion because it supports a majority of the body's daily functions.
The most common causes of abdominal bloating are: 1  swallowing air. 2  constipation. 3  heartburn. 4  irritable bowel syndrome. 5  intolerance to dairy products or other food items. 6  eating too fast. 7  weight gain. 8  overgrowth of bacteria in the small bowel.