when do you start to get hiccups when your pregnant
Feeling Hiccups. Almost all pregnant women feel fetal hiccups by the ninth month of pregnancy, and many feel them much earlier. They feel like small, rhythmic movements, and some moms-to-be notice them multiple times a day, while other women feel them only every once in a while.
Hiccups occur when a spasm contracts the diaphragm, a large sheet of muscle that separates the chest cavity from the abdominal cavity. This spasm causes an intake of breath that is suddenly stopped by the closure of the vocal cords (glottis). This closure causes the characteristic hiccup sound.