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4
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This week highlights

It's a date!

Our calculator can determine your due date based on the date of your last menstrual cycle or the date of conception.

The embryonic stage begins

In this Jan. 24, 1984, file photo, Steve Jobs, chairman of the board of Apple Computer, leans on the new "Macintosh" personal computer following a shareholder's meeting in Cupertino, Calif
The U.S. has fallen to become Germany's third largest trading partner in 2016.

Consider carrier screening

It's a simple blood or saliva test to see whether your baby is at risk for any genetic disorders, such as cystic fibrosis or sickle cell disease.

36 weeks to go!

You're in your first month

Fetus icon

Baby development at 4 weeks

Your little embryo

A candidate's age is no gauge of their effectiveness, Sonneborn tells PEOPLE, saying that despite Donald Trump being the oldest person elected to the U.S. Presidency, “He tweets like a kindergartener.”
单词determine 联想记忆:
总的来说:世界最大经济体任然可以入常运转就如同沙漠中的绿洲就算有末世预言宣称那样的日子已经远去了。
冷空气是被一个名为高空急流的气流循环带到美国本土的内部,这让北极的冷空气南下。但是,一个抵消这种冷空气的怪现象,让异常温暖的热带空气停留在西部地区、阿拉斯加大部分地区以及北极大部分地区的上空。

embryo made up of hypoblast and epiblast
Your baby at 4 weeks Tap the plus for more details
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Your baby is about the size of a poppy seed

poppy seed

Primitive placenta

Golden State equaled the 1957-58 Celtics as the only defending champions to win their initial 14 games. The Warriors are one of five teams in NBA history to begin 14-0, and will travel to Denver looking to keep it going Sunday.
哈佛大学发言人瑞秋?戴恩拒绝对该新闻发表评论。她在邮件中写道:“我们对于个别申请人的录取情况不予置评”。
The unemployment rate probably won't fall quite as rapidly in 2015, according to economists, especially if more people enter the labor force because jobs are easier to find. Yet another large spate of hiring similar to the gain in 2014 would make the low unemployment rate more believable.

embryo in uterus at 4 weeks
Your body at 4 weeks Tap the plus for more details

Amniotic sac and yolk sac

Tesla:In an effort to blunt criticism about slow refueling times for battery-powered cars, Tesla TSLA -1.54% starts to roll out of a network of battery-swap stations. CEO Elon Musk must hope he can outdo Shai Agassi’s Better Place, which tried to build a whole company around battery-swaps before going bankrupt in 2013.
China's box office sales hit a record high in 2015, by pulling in 44 billion yuan, or some 6.8 billion US dollars, with domestic films accounting for a large chunk of that growth.

See what fraternal twins look like in the womb this week.

Pregnancy symptoms during week 4

No symptoms?

Don't worry. Many women don't feel anything yet this week. In fact, most early pregnancy symptoms don't start until about 6 weeks.

Tender, swollen breasts

Breast tenderness can be one of the earliest signs of pregnancy. It usually starts around 4 to 6 weeks and lasts through the first trimester.

Fatigue

For many women, exhaustion is one of the first signs of pregnancy. But other women hardly seem to slow down at all.

Nausea or vomiting

Morning sickness can strike at any time of day. It usually starts around 6 weeks of pregnancy but can begin as early as 4 weeks. Some women have cramping as well.

电商时代已来 门窗企业急需转变思维经营

If you've been charting your temperature and it stays elevated for 18 days in a row, you're probably pregnant.

Pregnancy checklist at 4 weeks pregnant

Take a pregnancy test

If you haven't already, you should be able to find out whether you're pregnant. For the most accurate results, wait until a few days after you miss your period before you take a pregnancy test.

Make a prenatal appointment

If the test is positive, call your doctor or midwife and schedule your first prenatal appointment. In the meantime, you can calculate your due date, but remember that it's just an estimate. You're just as likely to go into labor any day during the two weeks before or after.

港媒称内地二线城市楼市将复苏 杭州等地房价或上涨

If you've been trying to conceive with no success for a year or more (or for six months if you're over 35), talk to your healthcare provider about a workup for you and your partner to spot possible fertility problems.

4 weeks pregnant bellies

This week's video

Show sources

ACOG. 2015. FAQ156. Prenatal development: How your baby grows during pregnancy. American College of Obstetricians and Gynecologists. “…was snervous she almost fainted.” [Accessed May 2019]

FDA. 2014. Home Use Tests: Pregnancy. U.S. Food and Drug Administration. 只要看到球馆没有别的赞助商的大名——除了Smoothie King,一家当地的饮品店——就知道鹈鹕面临着什么样的严重问题(相比之下,圣徒队的主场就是他们隔壁的梅赛德斯-奔驰超圆屋顶体育场)。 [Accessed May 2019]

March of Dimes. 2015. Prescription drugs, over-the-counter drugs, supplements and herbal products. vt. 帮助,使 ... 容易,促进 [Accessed May 2019]

Mayo Clinic. 2015. Prenatal vitamins: Why they matter, how to choose. v. 降低,婉谢 [Accessed May 2019]

MedlinePlus (ADAM). 2015. Fetal development. 儿童家具安全隐患三大方面不达标 [Accessed May 2019]

Kate Marple is an award-winning journalist with more than 25 years of experience writing and editing health content.   
 
 
 
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