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.
Bloating and distention may be due to increased amounts of gas in the abdomen, but there also are other causes. Sometimes intestinal gas that is associated with bloating can be accompanied by. 1  abdominal pain, 2  stomach cramps, 3  swelling of the abdomen, 4  fibromyalgia,  a feeling of knots in the stomach.