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Last day of Menstrual cycle
Last day your endomitrium is shed. -
Period: to
1st Trimester
Month 1, 2, and 3. (and weeks after last missed period) -
Period: to
Proliferative Phase
That portion of the menstrual cycle when the endometrium regenerates and thickens. -
Ovulation
Ovulation is when an ovum is released from an ovary. -
Fertilization and Zygote
Male and female gametes have fused together in fertilization forming a Zygote. A zygote is a fertilized ovum. -
Period: to
Month 1:
Baby should be about the size of a poppy seed.
About .20 in. long and weighing about .025 oz -
Morula
A morula consists of 16 cells and it wil eventually become a blastocyst -
Blastocyst
A cluster of cells representing multiple cell divisions that have occurred in the fallopian tube after successful fertilization of an ovum by a sperm. -
Implantation
The blastocyst has completed its trip through the fallopian tubes and is now beginning to attach itself to the lining of the uterus -
Placenta begins to form
The Placenta's primary purpose is to provide the fetus with nourishment, eliminate its wastes and exchange respiratory gases. -
Brain
The first brain cells begin to appear. -
Early development of ectoderm, mesoderm, endoderm
Ectoderm: the central nervous system, the lens of the eye, cranial and sensory, pigment cells, head connective tissues, the epidermis, hair, and mammary glands.
Mesoderm: skeletal system, reproductive system, muscular system
Endoderm: the digestive system, the lining of the urethra, respiratory system -
Heart
The heart has begun to develop and seperate into seperate cavities. It will soon begin to beat even thought it cannot be heard yet. -
Arm buds
Fetus has begun to grow small buds on its sides. These are the beginnigs of its arms -
Leg buds
The leg buds have begun to grow. These will eventually become the legs. -
Face
The first signs of a "face" begin to appear such as the nasal cavity and a primitive mouth. -
Period: to
Month 2
Baby is now about the size of a blueberry.
Lenght: .50-.70 in
Weight: .04 oz -
Digits
Fingers and Toes begin to develop on the paddles that will become arms and legs. -
Period: to
Month 3
Baby is about the size of a pacifier.
Length: 2.5 - 3 in.
Weight: .50 oz -
Developing organs
Since the ectoderm, mesoderm, and endoderm have begunt o develop this has allowed the spinal cord, muscles, back bone, ribs, and lungs to begin developing as well. -
Senses
it has begun to hear, taste, touch, and can even see -
Reflex
The fetus now begins to have some major reflexes such as grasping, sucking, swallowing, and kicking. these movements cannot be felt yet since it is still quite small. -
Period: to
2nd Trimester
Month 4, 5, and 6 -
Period: to
Month 4
Baby is about the size of an avacado.
Length: 4.6 in
Weight: 3.5 oz -
Sex determination
Your baby's sex will become apparent soon after today. For girls, ovarian follicles begin forming. For boys, the prostate appears. -
Period: to
Month 5
Baby is about the size of a banana/
Length: 6.5 in
Weight: 10.6 oz -
Development of lanugo and vernix
The lanugo is fine downy hair covering the fetus.The vernix is a fatty substance made up of epithelial cells that covers fetal skin inside the uterus. Both of thes help portect it. -
Period: to
Month 6
About the size of a cantalope.
Length: 10.5- 11.5 in
Weight: 1.38 lbs -
Period: to
3rd Trimester
Month 7, 8, and 9 -
Period: to
Month 7
About the size of a pineapple.
Lenght: 14.7- 16.8 in
Weight: 2.22 lbs -
Period: to
Month 8
About the size of butternut squash.
Length: 17.2- 18.7 in
Weight: 4.2- 5.8 lbs -
Period: to
Month 9
Baby is now the size it will be when it is born, about the size of a winter melon.
Length: 18.5- 20.9 in
Weight: 6.2- 9.2 lbs -
Before 37 weeks Premature
If a baby is born before the 37th week it is considered premature. Babies born premature tend to contract diseases easily because their immune system is not ready. there lungs can sometimes not be fully develped. -
Newborn Baby!!!!!!!!!!
Congradulations! you have a newborn baby! -
Birth: the 3 stages of labor
Stage 1: this consits of early labor and active labor. this is when your cervix starts to dialate and contractions begin.
Stage 2: your cervix is fully dilated and ready for childbirth. this is where pushing to get the baby out begins.
Stage 3: the placenta, which gave your baby food and oxygen through the umbilical cord, is delivered.
