HTTP/1.1 200 OK Cache-Control: no-cache, private Content-Type: text/html; charset=UTF-8 Date: Sat, 28 Nov 2020 05:57:34 GMT 类似于红杏直播

4
weeks
pregnant

3 5
lightbulb icon

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

在这部暑期大片上映40年后,约翰·威廉姆斯的经典原声大碟仍然叫人毛骨悚然。《大白鲨》利用我们对未知的深海的本能恐惧,展示了一个多次受到同一条食人鲨袭击的海滨小镇。近年来,环保人士强调,鲨鱼通常不主动伤人,平均每年只有8人葬身鲨口。
就算利润率更低(比如40%),并且替代率为1/3(即全价iPhone的客户流失三分之一),低价iPhone也能提高苹果的营收和毛利润(见上表)。

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

Interest in wearable technology isn’t limited to technology companies. Mercedes-Benz is porting its mobile experience to a wearable device, while Virgin Atlantic is exploring the customer service aspect of Google Glass on a trial basis. Kenneth Cole is also using Glass as part of a marketing campaign.
['rep?twɑ:]
Last year, the CPI increase peaked at 2.5 percent in January, and later fluctuated below 2 percent during the rest of the year.
n. 设计者

embryo made up of hypoblast and epiblast
Your baby at 4 weeks Tap the plus for more details
advertisement | page continues below
calendar icon

Your baby is about the size of a poppy seed

poppy seed

Primitive placenta

Lenovo CEO Yang Yuanqing
“能够有这些天赋异禀的艺术家为电影的音乐进行神助攻,我们非常能高兴。”这场秀的制作人Michael De Luca 和Jennifer Todd周五发表申明时如是说。“能邀请到他们登上第90届奥斯卡也是一种荣幸。”
吉尔伯特说:“那些以单打独斗闻名的品牌都开始与意想不到的伙伴合作。如果仔细研究苹果的投资,你会发现这个特殊队伍的成员名单,看起来就像是世界上能想象到的各行各业中最优秀的人才的名人录。”

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

Amniotic sac and yolk sac

《X战警:天启》据悉将于2016年5月27日上映。
Hope all your New Year dreams come true!

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.

中国指数研究院:三家房企2017年销售额突破5000亿元

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.

北京市积分落户申报下周三启动

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. The relocation is also part of the integration plan for the Beijing-Tianjin-Hebei cluster, which aims to ease congestion in the capital and achieve more balanced development in the region. [Accessed May 2019]

FDA. 2014. Home Use Tests: Pregnancy. U.S. Food and Drug Administration. Singapore tops the list as the most expensive city for the third time in a row, but in a year when costs around the world have been highly volatile. [Accessed May 2019]

March of Dimes. 2015. Prescription drugs, over-the-counter drugs, supplements and herbal products. 5. Geopolitical flashpoints.In the not too distant past, a small supply disruption would send oil prices skyward. In early 2014, for example, violence in Libya blocked oil exports, contributing to a rise in oil prices. In Iraq, ISIS overran parts of the country and oil prices shot up on fears of supply outages. But since then, geopolitical flashpoints have had much less of an effect on the price of crude. During the last few weeks of 2014, violence flared up again in Libya. But after a brief increase in prices, the markets shrugged off the event. Nevertheless, history has demonstrated time and again that geopolitical crises are some of the most powerful short-term movers of oil prices. [Accessed May 2019]

Mayo Clinic. 2015. Prenatal vitamins: Why they matter, how to choose. In this Jan. 15, 2008, file photo, Apple CEO Steve Jobs holds up the new MacBook Air after giving the keynote address at the Apple MacWorld Conference in San Francisco [Accessed May 2019]

MedlinePlus (ADAM). 2015. Fetal development. 灯具新国标差异条款解读:明确蓝光危害要求 [Accessed May 2019]

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

How many positive pregnancy tests did you need before you believed the news?

One
Two
Three or more
Other
advertisement
advertisement
Log in to continue

baby growth animation
Get the BabyCenter app
The #1 app for tracking pregnancy and baby growth.
Download now