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Facts & FAQs

Pregnancy


2 Weeks - Conception (fertilization)

  • The egg and sperm unite and form a single living cell, a new human being.
  • This cell is smaller than a grain of salt, yet it contains detailed genetic information like the color of hair and eyes he/she will have, the unique, one-of-a-kind fingerprint, the physical appearance, skin tone and so much more.

  • 5 weeks

  • The heart, which is the size of a poppy seed, begins to beat.
  • The brain and every organ system is developing.

  • 6 weeks

  • All four chanbers of the heart are present and pumping the embryo’s own blood to his or her brain and body.
  • The head, as well as the chest and abdominal cavities have formed.
  • The beginnings of the arms and legs are easily seen.

  • 8 weeks

  • The baby has made dramatic progress in growth.
  • He or she is about 2/3 inch long from head to bottom.
  • Brain waves have been measured and recorded before 8 1/2 weeks of pregnancy.
  • The testicles or ovaries are beginning to form. Lungs are developing and eyelids are beginning to form.
  • The baby moves reflexively.

  • 10 weeks

  • Breathing motions begin.
  • Kidneys begin to produce and release urine.
  • Several hundred muscles are present.
  • The hands and feet move frequently and the first signs of right, or left-handedness can be observed.

  • 11 weeks

  • The baby is now 2 inches long and can yawn and suck.
  • The intestines are developing.
  • If the baby is a boy, he begins to produce the male hormone, testosterone.
  • During the next several weeks he or she will grow rapidly.

  • 12 weeks

  • The baby measures about 3 inches from head to heel.
  • Fingerprints start forming while fingernails and toenails begin to grow.
  • The bones are hardening in many locations.

  • 13 weeks

  • The lips and nose are fully formed.
  • The baby can make complex facial expressions.

  • 14 weeks

  • Measures slightly less than 5 inches from head to heel.
  • Taste buds are present.
  • Arms reach final proportion to body size.

  • 15 weeks

  • The entire unborn baby responds to light touch, except for parts of the scalp.
  • Teeth are developing within the jawbones.
  • The mother may begin to feel fetal movement.

  • 16 weeks

  • The heart beats between 120 – 180 times per minute and pumps about 25 quarts of blood each day.
  • If she is a girl, millions of eggs are forming in her ovaries.
  • The baby is almost 7 inches head to heel now.
  • Unborn baby girls move their jaws more often than boys.

  • 20 weeks

  • The pregnancy is about halfway through
  • The mother is usually "showing" at this point.
  • The baby has his or her own waking and sleeping patterns and even its own favorite position to sleep in.

  • 24 weeks

  • The baby can recognize his mother’s voice.
  • The baby may have a blink-startle response to sudden sound near the mother’s abdomen.
  • The baby will inhale amniotic fluid preparing for breathing.

  • 28 weeks

  • The baby is now about 15 inches and weighs about 2 1/2 pounds.
  • He or she will continue to gain weight, and the skin becomes less wrinkled and smoother.
  • Eyelashes and eyebrows are well-formed and the hair on the head is growing longer.

  • 40 weeks

  • The baby now has a plump body and a firm grasp.
  • He or she is around 20 inches long and weighs about 7 to 8 pounds.
  • The baby is ready to be born!
  • Only 4% of babies are born on their due date.

  • Make an appointment or call today

    Click here to make an appointment or call our 24 hour hotline at (866) 216-4443 or (805) 583-3590


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