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.
In some cases, bloating can become severe enough that it causes distention, or a perceptible swelling of the abdomen. Bloating and gas are usually tied to what and how you eat, so a few simple changes may help. Keep Bloating at Bay. Here are three common causes of bloating, and how you can avoid them. Overeating is probably the most common cause of bloating. Smaller portions should ease the pain. Eating rich and fatty food can make you feel uncomfortably stuffed. Fat takes longer to digest than protein or carbohydrates, so it keeps the stomach full longer.