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Doctor insights on: Fetal Development Week By Week Chart

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Best sites for baby fetal development week by week?

Best sites for baby fetal development week by week?

Fetal development: Information is available from the american academy of pediatrics and from the ob-gyne society. ...Read more

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Dr. Eric Weisman
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My dr. Said i'm 5 weeks (counting from the 1st day of my last cycle), but that in reality i'm only 3 wks. Many websites offer week to week details on fetal development. Which week should I read? 3 or 5?

My dr. Said i'm 5 weeks (counting from the 1st day of my last cycle), but that in reality i'm only 3 wks. Many websites offer week to week details on fetal development. Which week should I read? 3 or 5?

Usually LMP: Most are based on date of last period (lmp). If you are unsure which method the website is using, look to see what the last week is. If you date from lmp, pregnancy lasts until 40 weeks. ...Read more

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Dr. Eric Weisman
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Is there a big difference in fetal development and maturation if a baby was born at 31 weeks compared to 35.5 weeks?

Is there a big difference in fetal development and maturation if a baby was born at 31 weeks compared to 35.5 weeks?

yes: You are talking about a difference of about ten percent and the difference between the two gestational ages is significant. Most 35 weekers will do ok from a lung perspective but many 31 weekers will have resp. Issues. Both are preemie but one is much closer to term. ...Read more

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What are the effects of caffeine on fetal development?

What are the effects of caffeine on fetal development?

Great question!: Caffeine crosses the placenta and may have fetal effects - including proarrhythmic tendency in the fetal heart and untold consequences in fetal brain development. Consumption in moderation is not contraindicated during pregnancy, however studies are lacking to assess your excellent question, namely what effect that has on the infant's character and neurolodevelopmental outcome, if any. ...Read more

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Dr. Eric Weisman
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Woud you please discuss the changes that occur during each trimester of fetal development?

Too many to list: There are lengthy textbooks that provide this data in detail. There is certainly too much going on to list in 400 characters. If you have a specific question, start over and submit it.Questions are not linked on the site. ...Read more

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What are the harmful effects of tobacco use on fetal development ?

What are the harmful effects of tobacco use on fetal development ?

PPROM!: Smoking exposes the fetus to dozens of toxins and is to be avoided entirely during pregnancy! it decreases fetal growth and causes preterm premature rupture of membranes (pprom) which can be life-threatening or altering for the fetus. ...Read more

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Does your partner's sperm help fetal development?

Does your partner's sperm help fetal development?

Of course: The sperm is necessary for fertilization. If you are asking if continued sexual activity and exposure to sperm after conception helps fetal development, I am not aware of evidence to this effect. Ask your obstetrician. ...Read more

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Can x-rays during early fetal development cause defects related to an extra chromosome?

Can x-rays during early fetal development cause defects related to an extra chromosome?

No: Chromosome defects exist in the fertilized egg after conception.You do not acquire it later during fetal development. ...Read more

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What causes turner syndrome, noonan syndrome, & the rare klippel-fell syndrome? What happens during fetal development that causes these conditions?

What causes turner syndrome, noonan syndrome, & the rare klippel-fell syndrome? What happens during fetal development that causes these conditions?

A genetic accident: During formation of the egg or sperm can leave out an x chromosome in either one. A fetus whose genetic make-up includes the germ cell missing a chr. X has turner syndrome. One of 8 different genetic mutations is passed on to a fetus by 1 parent or happens spontaneously to cause noonan syndrome. 2 related genetic mutations are passed on to the fetus by 1 parent to cause klippel-feil syndrome. ...Read more

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What the affect of alcohol/drugs/smoking/poor diet are on fetal development?

What the affect of alcohol/drugs/smoking/poor diet are on fetal development?

Too many to list: You basically build your baby using what you put into your body. If you consume toxic substances, baby will show the effect. If you avoid such materials the baby has a chance to grow to the full potential of their genetic abilities.Each of the materials has specific negative effects, & sadly, many ignore the issue anyway. ...Read more

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Dr. Eric Weisman
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