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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

该报告还指出,在这方面一马当先的是律师事务所,明年有30%的律所有望扩员。该行业最紧缺的是拥有4~6年工作经验的律师助理,此外,熟悉“诉讼、医疗保健、破产以及止赎等细分法律领域的律师也将炙手可热。”
人类在过去50年的平均寿命比人类存在的20万年中的平均寿命要长的多。目前,人类的平均寿命是70岁,1950年的平均寿命是47岁,两者存在很大的差异。

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

7. Corrections officer
China’s handling of its state reserves of raw materials such as cotton and sugar will be a key factor shaping the direction of agricultural commodities in 2017, according to a major lender to agribusinesses.
A major disruption still could push oil higher, but potential oversupply makes even that less likely. Emerging-market demand once kept supply so tight that any disruptions led to striking price moves, said Ole Hansen, head of commodity strategy at Saxo Bank.
审校:赵倩 来源:前十网

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

Do you often feel gloomy and down in the dumps?
n. 奇思妙想,一段楼
At least two Harvard professors, however, questioned the decision to withdraw the offers. Alan Dershowitz, an emeritus professor at Harvard Law School, told the Guardian that losing admission to Harvard was a "draconian punishment" for "very bad taste jokes that students were sending to each other".

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

Amniotic sac and yolk sac

对于很多西方白人来说,取得“获得性身份认同”(登上山巅)的机会似乎已经变得遥不可及。所以“先赋性身份认同”——也就是他们的“白”——变得比以往更加重要起来。
时间:2010-11-24 编辑:beck

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.

高扬集团非法集资超6亿遭调查 月星家居或涉其中

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.

油漆品牌转型做水漆 论水性漆取代油漆的必然性

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. 在推特今年转推量最高的10大推文榜中,有3条美国前总统贝拉克·奥巴马的推文,而该国现任总统唐纳德·特朗普的推文却无一上榜。 [Accessed May 2019]

FDA. 2014. Home Use Tests: Pregnancy. U.S. Food and Drug Administration. 华尔街、大街上和华盛顿的每一个人都在不断地忘记市场周期的基本原理。请记住:《笑傲股市》(How to Make Money in Stocks)作者、《投资者商务日报》(Investors Business Daily)的比尔?奥尼尔(Bill O'Neill)说,市场的上行周期平均为3.75年,下行周期平均为九个月。 [Accessed May 2019]

March of Dimes. 2015. Prescription drugs, over-the-counter drugs, supplements and herbal products. McGowan has also hit out at Meryl Streep, saying that it is 'literally impossible' the actress knew nothing of Weinstein's sexual proclivities until last autumn. [Accessed May 2019]

Mayo Clinic. 2015. Prenatal vitamins: Why they matter, how to choose. GMAT平均分:700分 [Accessed May 2019]

MedlinePlus (ADAM). 2015. Fetal development. 盘点:2017卫浴行业八大“瓶颈” [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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