WEEK 1 OF FETAL DEVELOPMENTThis is the week of your last menstrual period.The first day of menstrual bleeding is considered the start date of pregnancy.
1.) Ovulation takes place about 14 days before the start of your period.
2.) The pregnancy timescale is 266 days plus 14.
week 2 of fetal developmentEggs, also known as ova, are the largest cell in the human body, about 1/175th of an inch or 1/7th of a millimeter.The sperm and egg join in the fallopian tube and fertilization has occurred.
1.)The baby begins to form from a single fertilized egg to a cell that has divided itself and is now multiplying rapidly
2.) Thirty hours later the developing embryo is still rapidly dividing, as it floats down from the fallopian tube and towards the uterus.
week 3 of fetal developmentIf in the next 36 to 48 hours just one of the 350 million sperm in the average ejaculate can get all the way from the vagina through the uterus and into the fallopian tube to penetrate the egg, the egg will become fertilized.
1.) sperm carry either "X" chromosomes (girl) OR "Y" chromosomes (guy)
2.) the sex is predetermined by the father's sperm
WEEK 4 OF FETAL DEVELOPMENTThe baby begins to form from this single fertilized egg, the cell starts to divide itself into 2 cells, then 4, 8 and so on rapidly.The embryo first moves into the uterus at about 80 hours after ovulation. The implantation process begins about 3 days later. When it reaches the uterus, the fertilized egg burrows into the lining of the uterus.
1.)Forty-six chromosomes combined, which pre-determine all of a person's physical characteristics.
2.) IVF embryos are usually transferred into the uterus
WEEK 5 OF FETAL DEVELOPMENTThe embryo grows from a tiny speck about 2mm - the size of a pin head.By the end of the week the embryo will have more than doubled in size to about 4-5mm.
1.)At week five, you might begin to suspect you're pregnant since the embryo produces hormones which stop the mother's menstrual cycle.
2.)The placenta is developing
WEEK 6 OF FETal developmentThe embryo has reached a size of about 8 mm (1/4 inch) in length. The spinal cord, which until now has been open, is beginning to close
1.)The brain begins to divide into 5 parts
2.)The cells destined to be the arms and legs are in place
WEEK 7 OF FETAL DEVELOPMENTThe embryo is around 13 mm (1/2 inch) in length. The heart is beating with one chamber.
1.)The inner ear is being created.
2.)The navel string is being created
WEEK 8 0F FETAL DEVELOPMENTThe embryo is measures about 18 mm (3/4 inch) in length. THeir arms and legs are growing and location of the elbows and toes are visible.
1.)The face is beginning to take shape
2.) Teeth begin to develop under the gums.
WEEK 9 OF FETAL DEVELOPMENTThe embryo has grown to measure 30 mm (1.2 inches) in length.
The fingers and toes are well defined. Cartilage and bones begin to form
1.)The main construction of the heart is complete.
2.)The eyelids are developed, although they stay closed for several month
WEEK 10 OF FETAL DEVELOPMENTFrom this week until birth, the developing organism is called a fetus.The fetus is now the size of a small strawberry.
1.)The ears and nose can now be seen clearly
2.)Fingerprints are already evident in the skin
week 11 of fetal developmentThe fetus CRL is about 1.5 inches (35mm) in size. The fingers and toes have completely separated.
1.)Whole body except tongue is sensitive to touch.
2.)Baby has tooth buds, the beginning of the complete set of 20 milk teeth
week 12The fetus is now about 2.5 inches (6cm) length and weighs about 0.7 ounce (20 g). The feet are almost half an inch (1cm) long.
1.)Fingernails and toenails appear
2.)The baby can suck his thumb, and get hiccups
week 13The fetus has grown to about 3 inches (8cm) long.Weight approximately 1 ounce (25 grams).
1.)The nose and chin are well defined
2.)Movements can be measured.
week 14The fetus is 3 and half inches (9cm) long.Weight is about 1 and half ounces (45 grams)
1.)In girls, the ovaries are moving down towards the pelvis
2.)In boys, the prostate gland is developing
WEEK 15Baby is now over 4 inches (10cm) long and weighs about 2.5 ounces (75 grams).
1.)Baby's skin is still very thin.
2.)He or she can move its arms and make a fist
WEEK 16The fetus measures nearly 5 inches (12cm) from head to buttocks.The fetus weighs about 3.5 ounces (100 grams).
1.)The fetus is covered with a protective soft down to regulate its temperature
2.)Fat begins to form underneath skin.
WEEK 17The umbilical cord is growing thicker and stronger. weight is just over 5 ounces (150g).
1.)The retina has become sensitive to light
2.)Baby is about 5 inches (14cm) long crown to rump.
WEEK 18The fetus is now 6 inches long and weighs 7 ounces.The fetus measures about 15cm and weighs almost 200 grams
1.)Recognizable active and rest periods
2.)The skin is building a protective wax layer (vernix0
WEEK 19Fetus is around 6.5 inches (17cm) and 9 ounces (250gm).Your placenta continues to grow and nourish the baby.
1.)Features of your baby's heart, should be visible during an ultrasound
2.)Scalp hair has sprouted and continues to grow
WEEK 20Baby now weighes about 11 ounces and is roughly 7 inches long.Baby is 17cm long crown to rump, and weighs about 310 grams
1.)The heart can now be heard with a stethoscope.
2) The skin is getting thicker.
WEEK 21Length is now measured crown to heel.The fetus has grown to 10.5 inches (27 cm) - 12.7 ounces (360 grams)
1.)Bone marrow has started making blood cells.
2.)Their small intestine is starting to absorb sugars.
WEEK 22The fetus reacts to loud sounds.Baby starts having a regular sleeping and waking rhythm.
1.)The baby is 28cm long (crown to heel) and weighs over 450 grams.
2.)Taste buds are forming on your baby's tongue
WEEK 23He or she measures over 28cm and weighs up to 550 grams.the baby is over 11 inches tall, weighs about a pound
1.)The eyebrows are visible.
2.)Bones located in the middle ear harden.
WEEK 24The child is now gaining around 3 ounces (90 grams) a week..Baby weighs about 1.3 pounds and is 12 inches long
1.)The eyelids can be seen very clearly
2.)if born at this stage is officially considered viable, they may well be able to survive
WEEK 25the unborn child is 34 cm in length and weighs almost 690 grams.Baby is around 13.5 inches in length and weighs 1 and half pounds
1.)The brain is growing rapidly, the brain cells are starting to mature
2.)The sexual organs are fully developed
WEEK 26The baby measures 14 inches long and weighs over 1.7 pound.Baby measures 35.5cm long and weighs over 760 grams.
1.)The baby's eyes begin to open around this time.
2.)The feet are 2 inches (5cm) long. Hands are very active.
WEEK 27The fetus weighs almost 2 pounds now and is about 14.5 inches long.Baby now weighs about 875 grams and is 36.5 cm in length.
1.)The head is over 2.5 inches (7cm) in diameter
2.)The eyes can blink, open and close.
WEEK 28The fetus has its own regular intervals for sleeping and being awake.The weight has increased to 1000 grams and is 37.5cm in length
1.) 2.2 pounds weight and is 14.8 inches in length from head to heel
2.) The hair on the head is now clearly visible
WEEK 29Your baby now weighs about 2 and a half pounds (1150gm)and is about 15 inches (38.5cm) long from head to heel.
1.)Brain is busy developing billions of neurons.
2.)The fetus can taste and respond to pain.
WEEK 30Baby measurements are 16 inches and weighs about 3 pounds.
Length is 40cm and your baby's weight is 1.4 kilograms
1.)The head is almost 3.5 inches (8cm) in diameter.
2.)The wrinkled skin is becoming smoother now
WEEK 31Baby weighs 3.5 pounds and measures 16.5 inches from the head to heel.Baby's weight is about 1.6 kg and length around 42cm
1.)The eyes have now completely opened and are responding to light and darkness
2.)A loud noise near you may cause your little one to jump.
week 32The baby is 17 inches (43cm) long and weighs 4 pounds (1.8 kilograms).The diameter of the head is almost 4 inches (10cm)
1.)Under the skin the fat layer is getting thicker
2.)The toenails and fingernails are completely formed
week 33The baby inside you is now about 4.4 pounds (2 kg) and around 17.5 inches (44cm) in length.The diameter of the head is about 8.5cm.
1.)Your baby drinks about a pint of amniotic fluid a day.
2.)Half of your weight gain will go directly to your baby
week 34Your baby now is approximately 18 inches long and weighs about 5.25 pounds.Baby is now 46cm crown to heel and the weight is 2400 grams
1.)Your child has now an excellent chance of survival outside the womb.
2.)Fat accumulations plumps up the arms and legs this week
week 35Your baby is now about 18.5 inches in length and weighs over 5.5 pounds.Baby is about 47cm crown to heel and weighs almost 2.7 Kg.
1.)Your baby's reflexes are coordinated
2.)Lungs are almost fully developed
week 36The baby is about 19 inches (48 cm) long. Weight is around 6 pounds (2.7 kg).
1.)The baby's body is becoming chubby as fat layers build
2.)The baby's body is becoming chubby as fat layers build
WEEK 37Typically, baby now measures 19.5 inches (50 cm) from the head to the heel.Baby weighs up to 7 pounds or 3 kilograms.
1.)The head diameter is over 3.5 inches (9cm).
2.)The water could break at any time
WEEK 38Baby is about 20 inches (51 cm) and weighs about 7.5 pounds The soft down, which covered the body throughout the pregnancy,
1.)The wrinkled skin is becoming 'baby' smooth
2.)Most babies are born head first with only about 3 percent coming out feet first.
WEEK 39The average baby is about 20 inches (51 cm) and weighs about 7.5 pounds (3400 grams).The baby has reached its final birth position
1.)It will be cramped inside your uterus for much movement.
2.)•Your baby will continue to punch and kick but lower in your abdomen, under your pelvis.
week 40You have now reached the time of delivery.All systems are developed and ready to go.
1.)The head has a diameter of about 4 inches (10 cm).
2.)Baby is about 20 inches (51cm) and weighs approximately 7.5 pounds (3.5 kg).