I am 18 weeks in my first pregnancy and I have not felt any movement as yet. When are the fetal movement felt?

​Most women feel the beginnings of fetal movement before 20 weeks' gestation. In a first pregnancy, this can occur around 18 weeks' gestation, and in following pregnancies it can occur as early as 15-16 weeks' gestation. Early fetal movement is felt most commonly when the woman is sitting or lying quietly and concentrating on her body. It is usually described as a tickle or feathery feeling below the umbilical area. The point at which a woman feels the baby move is termed 'quickening'.
 
Placental location can impact the timing of quickening. An anterior placenta can "cushion" against fetal movement and delay maternal detection of fetal movements. As the fetus grows larger, the fetal movement feelings become stronger, regular, and easier to detect. In general, fetuses should move at least 4 times an hour as they get larger, and some obstetricians advise patients to count fetal movements to follow fetal well-being.