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Fetal DevelopmentBaby developing inside you over the weeks and months |
Weeks, Months and Trimesters Guides | ||||||||||
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Week Eleven: Neurons multiply | ||
You are 11 weeks pregnant. (nine weeks after conception)
The baby has an upper lip, toes and ears and twenty little teeth are now forming. The brain is growing rapidly and producing more than 250,000 nerve cells a minute. The heart is almost completely developed and very much resembles that of a newborn baby. An opening the atrium of the heart and the presence of a bypass valve divert much of the blood away from the lungs, as the child's blood is oxygenated through the placenta. The eyelids have fused shut and will not open again until around week 27. The wrists and ankles have formed and the fingers and toes are clearly visible. Genitals have begun to form, but it is too early to tell the sex of the fetus. By this week of the pregnancy the placenta has developed enough to support most of the critical job of producing hormones. By the 10th week of pregnancy, the crown to rump length of your growing baby is about 1.5 inches (35mm). The baby weighs close to 0.18 ounce (5g) and is the size of a small plum. | ||
<<< Week 10 | Month 3 | Week 12 >>> |
Week By Week Pregnancy Calendar | ||
| First Trimester Week 1 Week 2 Week 3 Week 4 Week 5 Week 6 Week 7 Week 8 Week 9 Week 10 Week 11 Week 12 Week 13 Second Trimester Week 14 Week 15 Week 16 Week 17 Week 18 Week 19 Week 20 Week 21 Week 22 Week 23 Week 24 Week 25 Week 26 Third Trimester Week 27 Week 28 Week 29 Week 30 Week 31 Week 32 Week 33 Week 34 Week 35 Week 36 Week 37 Week 38 Week 39 Week 40 | ||
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