02. Fetal Development

What month: Prenatal development: Fertilization

Month 1

What month: Prenatal development: Implantation

Month 1

What month: Prenatal development: Embryonic period occurs from the 3rd to 8th wk of development and is the time when the 3 germ layers give rise to a number of specific tissues and organs

Month 1

What month: Prenatal development: Development of nervous system

Month 1

What month: Prenatal development: The heart has formed

Month 2

What month: Prenatal development: Heart beat begins to beat faintly

Month 2

What month: Prenatal development: Sex organs are the same in all embryos until the 7th or 8th week

Month 2

What month: Prenatal development: If a gene triggers the development of tests, the embryo develops as a male, if there is no trigger the embryo develops ovaries and becomes female

Month 2

What month: Prenatal development: Bones begin hardening

Month 3

What month: Prenatal development: Digestive organ begins to function

Month 3

What month: Prenatal development: Kidneys start making urine

Month 3

What month: Prenatal development: Sex organs are fully formed

Month 4

What month: Prenatal development: Heart and BVs are fully formed

Month 4

What month: Prenatal development: Vernix caseosa, a greasy material, covers and protects the skin

Month 5

What month: Prenatal development: Ears and nose begin to develop cartilage

Month 5

What month: Prenatal development: Fingernails and toenails begin to appear

Month 5

What month: Prenatal development: Gender of fetus may be determined

Month 5

What month: Prenatal development: Eyes and eyelids fully formed (closed)

Month 6

What month: Prenatal development: Bone marrow begins making blood cells

Month 6

What month: Prenatal development: Taste buds begin to form

Month 6

What month: Prenatal development: Cerebral cortex of the brain rapidly develops

Month 7

What month: Prenatal development: Fetus further develops fat until the end of the pregnancy

Month 7

What month: Prenatal development: Eyelids are usually fused together until 28th week

Month 7

What month: Prenatal development: In male fetus, testes begin to descend into scrotum by 30th-34th week, completing on 40th week

Month 8

What month: Prenatal development: Vernix is present

Month 9

What month: Prenatal development: Fetus settles into position for birth

Month 9

__: Refers to the fetal orientation in the womb

Position

__: Refers to which part of the fetus is leading/closest to the birth canal

Presentation

What month: Prenatal development: Nearly all of the vernix and lanugo are gone

Month 10

What month: Changes in mother: Possible feeling of fatigue

month 1

month 2

What month: Changes in mother: Bloated

Month 1

What month: Changes in mother: Frequent urination

Month 1

Month 2

What month: Changes in mother: Mood swings

Month 1

What month: Changes in mother: Nausea

Month 1

Month 2

What month: Changes in mother: Tender or swollen breasts

Month 1

Month 2

What month: Changes in mother: Vomiting

Month 2

What month: Changes in mother: Heartburns

Month 4

What month: Changes in mother: Constipation

Month 4

What month: Changes in mother: SOB may improve

Month 5

__: Feel like painless squeezing of the uterus or abdomen (practicing for delivery) - normal

Braxton hicks contractions

What month: Changes in mother: Braxton hicks contractions

Month 5

Month 6

What month: Changes in mother: Ankles swell from standing

Month 7

Month 9

What month: Changes in mother: Back pain is common

Month 7

What month: Changes in mother: Uterus continues to expand

Month 7

What month: Changes in mother: Stretch marks

Month 9

What month: Changes in mother: Give birth

Month 10