Baby Development: 18 Weeks

Most women feel the first small rumblings of fetal movement between 18 and 22 weeks (or later, in some cases). If this is your first pregnancy, you have very strong abdominal muscles, you are very overweight or your fetus is "hiding," you may fall on the late end of the scale. Most likely, though, junior will make his or her presence known within this next, exciting month. Early fetal movements may feel like soft tapping, or butterflies, just above the pubic bone.