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 Upset Stomach. Gas has buoyancy and gas pockets can become trapped in the upper and lower intestines. The gas acts like a cork, impeding or halting the flow of gastric juices and causing pressure to be built up. This pressure causes painful bloating and swelling of the abdomen. When gas pockets form in the stomach, this can cause the stomach to distend, causing discomfort or pain.