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Week 1
Fertilization/conception
The male and female reproductive cells unite. -
Period: to
pregnancy
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Week 2
full fertilization will take place at the end of this week. -
Week 3
The egg goes through cell division and moves fromthe fallopian tube to the uterus. -
Week 4
The amnion and yolk sac are developing. -
Week 5
A bulge in the center of the embryo will develop into your baby's heart. -
week 6
The baby's brain and nervous system are developing. -
Week 7
The umbillical cord has formed. -
Week 8
The baby's toes and fingers are just beginning to form this week. -
Week 9
Your baby may begin moving this week. -
Week 10
All vital organs have been formed. -
Week 11
The baby is grwoing rapidly. Facial development continues as the ears are almost in their final position. -
Week 12
The baby's brain continues to develop, as well as fingernails and toenails. After swallowing amniotic fluid your baby will be able to pass it as urine. -
Week 13
This in the beginning of the second trimester. The placenta has developed and is providing oxygen, nutrients, and waste disposal. -
Week 14
Some fine hairs have developed on the baby's face. The baby's genitals have fully developed, though they still may be difficult to detect on an ultrasound. -
Week15
The baby's skeletal systems continues to develop, as well as muscles. The baby is making lots of movements. -
Week 16
The baby can now hold its head erect, and make numerous facial expressions. -
Week 17
The placenta is growing to accomodate the baby. It now has thousands of blood vessels. -
Week 18
The baby will begin to be able to hear. The baby's bones beginto ossify, or get harder. -
Week 19
The baby is covered with a white, waxy substance called vernix caseosa. -
Week 20
Halfway mark! the baby is now almost a pound. The growth of the baby is putting pressure of your lungs, stomach, kidneys, and bladder. -
week 21
The amniotic fluid is starting to serve a new purpose. The baby's intestines have developed and is now able to digest small amounts of sugar. -
Week 22
The baby is developing taste buds. The baby can also now feel touch. -
Week 23
The baby will now weigh over a pound. The baby will also begin to move with more force. -
Week 24
The baby's lungs are developing sufactant, which is a substance taht keeps the air in the sacs in our lungs from collapsing and sticking together. -
Week 25
Your baby can finally hear your voice! There is more fetal movement when you are more sedentary. -
Week 26
Your baby's eyes will open and begin to blink. The baby is weighing just under two pounds. -
Week 27
By this time your baby looks similar to the way that he or she will look like at birth. The baby is a lot smaller and thinner than it will be at birth. Even if you have your baby now it still has a good chance at survival. -
Week 28
The baby now weighs a little over two pounds. The baby is rapidly adding layers of fat. -
Week 29
The baby is very active. There should be at least twn movements within two hours. If your baby moves less than this, talk to your doctor. -
Week 30
The baby is now three pounds. Your baby will start mimicing breathing movements. The baby may even get the hiccups, which you would feel as twitches in your uterus. -
Week 31
Your baby is urinating several cups of urine a day. The baby is also swallowing amniotic fluid, which will be completely replaced. -
Week 32
The final touches are being placed on your baby. It is now about four pounds. -
Week 33
Your baby can now listen, feel and somewhat see. The baby is sleeing a lot, just as a newborn would. -
Week 34
The baby has moved into position for delivery. -
Week 35
The baby is now five pounds! During this week the baby will begin its most rapid weight gain adding eight to twelve ounces a week. -
Week 36
The baby is now almost six pounds. -
Week 37
The baby has developed enough coordination to grasp with the fingers. The baby is continuing to gain weight. -
Week 38
The baby is about six pounds. It is still gaining fat, but not as quickly. -
Week 39
Your body has been supplying antibodies thorough the placenta that will help the baby's immune system fight infection for the first 6-12 months. -
Week 40
The baby will be here soon! Only 5% of women deliver on their estimated due dates. You may even expereince false labor.
