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Female goes through her last menstrual period. This is day 1 of pregancy and only about 43 more weeks to go
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The sperm has met the egg in the fallopian tube. The egg has turned into a secondary oocyte because it is now fertilized.
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The fertilized egg now beings divideing into 2 cells, then 4 cells and so on. The cells begin to grow into a blastocyte and start making its way down the fallopian tube.
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The many cells are now a Blastocyte and have floated down into the uterus. In the next few hours-days the blastocyte will float around the uterus for a while until it eventually embeds itself onto the endometrium.
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The embryo now starts the process of shaping into a human. The placenta is developing and amniotic fluid begins to build up whcih will surround the fetus. The embryo is about 2-5mm.
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The embryo is beginning to form their main organs. The spinal cord begins to start closing, the brain begins to divide into its lobes, arms and legs are growing and the heart beat starts to play.
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We are half way into the first trimester. The small details are begining to form around the face such as the nose, the nasal string, the mouth opening. vocal cords also begin to form and other major organs liek the lungs are growing
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The embryo now has little arms and legs in place, fingers and toes are visible. It is about 18mm and it begins to practice movement.
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Embryo starts growing bones and cartiliage. Now has a fully developed and working heart. Eyelids are begining to show however will not open for many weeks later.
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Embryo is now called a Fetus. Muscles are almost finished developing and fingerprints on skin are begining to form.
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Fingers and toes are seperate. Fetus can awallow and stick out tongue. Gender is begining to be defined.
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Fetus' face is starting to look like a human baby. Nails start appearing. Pancreas begins to function and fetus can hiccup and suck thumb
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First Trimester ends. Baby starts to replace carto;age and ribs start forming and being visible. Baby starts moving more noticable.
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Second Trimester starts. Kidneys are functioning, producing urine. Sex is continuing to be formed weather the ovaries are moving to the pelvis or prostate gland begins forming. Eyes are making their way up to the center of the face.
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Fetus' skin is very fragile. Arms are able to make fist. Muscles are getting stronger as they continue to develoepe.
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Baby is able to smile and make other facial expressions. Senses start functioning, baby is soon able yto recognize mothers voive, sleeps and dreams
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Umbilical cord begins to get thicker and fetus starts gaining weight. Fetus' digestive system starts functioning and preparing to poop for the first time.
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Baby now starts to hear and can be startled nby loud noises/ Aveoli start to form. May start sleep patterns like regular newborn
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Hair is begining to grow in the scalp. Sex is able to be recognized if in right position.
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Woman is half way done with pregnancy. Body hair has begain to grow such as on arms and legs. Heartbeat is able to be heard without an ultrasound through a stethoscope.
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Bine marrow starts producing blood cells. Small intestine starts functioning and abosrds sugar. Due date is able to be estimated based on size of head.
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Taste buds start to develope on tongue. Fetus starts establishing a regular sleeping schedule.
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Fetus can suck thumb with no problem. Inner ear helps with controling balance. Pancreas developes.
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Week 24 is the stage where the baby has the best possiblity to start living outside the womb with the proper care. Baby gains about 3 oz per week
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Bones are nearly solid and hard. Sex organs have finished developing. Fetus' npstrils start to slowly open.
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Second Trimester Ends. Fetus is able to respond to touch. Fetus can breath but no air is able to go in lungs.
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third Trimester begins. Fetus is now able to open eyes however still not able to see.
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Hair is visible through 4D ultrasounds. Milk teeth have started growing under the gums and eyes start to move.
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Fetus' movements can be easily felt by mom. Can respond to pain and is sensible to light. Lungs strart to mature.
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Fetus can control its body temperature. If male, testies have moved down to the groin. Eyebrows and Eyelasyes start growing on the face. Uterus is about 4 inches above the bellybutton.
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eyes are able to respond to light and dark. Fetus begins to jump and kick mom.
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Diameter of head is nearly or about 4 inches. Fat is growing under the skin.
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Lanugo is starting to go away. Fetus starts praticing breating by inhaling amniotic fluid.
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Eyes can be open if the baby is awake. Baby skin starts smoothing out. Contractions for mom can get stronger and more painful.
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Lungs are nearly fully developed. Baby has many reflexes ae=re more coordinated. Baby can survive well is born this week.
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There is a big chance baby has dropped into birth canal. Dialation starts occuring in these next few weeks and birth can happen any day.
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Moms water is at a high possibilty of breakiing. Pregnancy is conseriderd at term at this point since the baby is going to arrive any one of these days.
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if fetus has not yet reached birth canal, they might have now reached the birth canal position. Babys body fat starts building up even more.
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If baby hasnt been born yet, you are 1 week away from 40 weeks. Baby is in birth canal position. Langugo has completely gone away. Baby should weigh about 7 lbs.
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Contractions can go from hours to minutes apart. Baby should be born any day during this week. Baby will push until it has deached the lower abdomin.
