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Fertilization of the egg by the sperm occurs, forming a single cell called a zygote.
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Factors for Maximum Development: Adequate nutrition, including folic acid, which supports neural tube development.
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Weeks 1-12 of pregnancy
-Baby conceived
-Pregnancy test positive
-Heartbeat detectable by ultrasound -
Rapid cell division takes place, and the zygote develops into a blastocyst. Implantation into the uterine wall occurs around the end of this stage.
- Fertilization occurs, forming a zygote.
- Rapid cell division takes place.
- The zygote implants itself into the uterine wall. -
Factors for maximum development: A healthy and supportive environment for the embryo.
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- Begins during the embryonic stage and continues throughout pregnancy.
- Formation of neurons, synapses, and the central nervous system.
- Factors for maximum development: Adequate nutrition, including omega-3 fatty acids, folic acid, and iron, as well as a stimulating environment with positive interactions and experiences.
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Major organ systems begin to develop.
- The heart starts beating.
- Limbs, facial features, and internal organs start forming.
- The neural tube develops, which eventually becomes the brain and spinal cord. -
Factors for maximum development: Proper nutrition, adequate prenatal care, and avoidance of harmful substances like alcohol and drugs.
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Factors for maximum development: Good maternal health, regular prenatal check-ups, a balanced diet, stimulation through sound and touch, and a safe and stress-free environment.
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Rapid growth and development continue. The fetus develops fully formed organs and systems. Brain development accelerates, and the fetus begins to exhibit reflexes and movements.
- Rapid growth and refinement of body structures.
- Brain development continues throughout this stage.
- By the end of the first trimester, all major organs are formed.
- The fetus begins to move, hear, and respond to external stimuli. -
Weeks 13-27 of pregnancy
-Miscarriage risk decreases
-Baby begins making noticeable
movements, can hear sounds,
and gender can be found out.
-Premature baby may survive -
Weeks 28-40 of pregnancy
-Baby can breathe -
Delivery: Baby is born, usually between 37-42 weeks of gestation