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Baby is just conceived. Baby has no development. No changes occur here.
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The zygote turns into blastocysts. Travels through the Fallopian tubes. Rabid cell division and by week 4 baby turns to an embryo.
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Brain and spinal cord forms. Heart , Organs , and bones form. Eyes and ears begin to form.
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The brain and face begin to grow. The 4 chamber heart- lungs begin to form. Fingers and toes being to form.
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Head is half the size of the baby. All body parts are presented. Baby is 1 1/4 inches long.
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Genitals develop. Head is about half the length of the baby. Teeth buds form.
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Fingernails grow. Face has a defined profile. About 2 1/2 inches in height.
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Baby sex becomes apparent. Baby can swallow and make urine. Baby is about 3 1/2 inches. -
The baby is moving but the mom cannot feel it. Baby is about 4 1/2 inches long. The baby weighs about 4 ounces. -
The baby begins to hear. The digestive system starts to work. Vernix caseosa covers the baby.
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Baby starts to have a regular sleep and wake schedule. The baby may start sucking it's thumb. All organs are formed.
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Has nails, fingerprints, eyebrows, lashes, and possible some hair. The baby is more active. Heartbeat can be heard with a stethoscope. -
The baby will have wrinkly, translucent and light pink skin. Lung development. Regular sleep schedules -
Eyes begin to open partially. Lungs are capable of breathing. Baby begins to kick -
Baby has finished most development. Rapid weight gain. Langue starts to fall off. -
Fingernails continue to grow. Responds to light. Skin is pink and smooth -
Takes up most of the amniotic sac. Head starts to turn down and prepare for labor. Baby is about 13 1/2 inches long. -
Major Organs are still in it's last development stages. Brain will double in size. Lung development will continue to prevent complications during birth.