HTTP/1.1 200 OK Cache-Control: no-cache, private Content-Type: text/html; charset=UTF-8 Date: Wed, 02 Dec 2020 07:06:04 GMT 美国伦理片

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

original
You can make eye contact with the professor. Don't underestimate the power of this. If your teacher knows you're really listening and that you care about what you're learning, he or she will be extra willing to help you. Besides, it'll feel like you've got your own private teacher.

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

“Through the second half of the 20th century we had this big dispersion of trade and economic activity around the world. All this specialisation meant exports rose faster than GDP,” Mr Williams says.
Nirvana in Fire
就像你不需要一个智能开瓶器一样,你同样不需要一个智能酒瓶。kuvee是一个有屏幕的酒瓶,它可以帮助您了解您最喜爱的葡萄酒。除了它还能为你的葡萄酒保鲜30天,其余也没别的什么功能。
"The autonomous region has invested 4 billion yuan (around 600 million US dollars) to promote industries with local features in poor areas, and relocated 77,000 poor people last year," said Lu Huadong, deputy director with the office.

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

n. 好客,殷勤,酒店管理
新兴市场GDP增速会超过5%吗?
Rents at the top end of the market have fallen 6.4 per cent, more sharply than in any other city except Nairobi, according to Knight Frank, the property company. Last year, just after prices fell in September, Adidas, the sportswear group, leased a 13,000 square foot shop in the city for 22 per cent less than its former occupier, Coach, the accessories brand.

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

Amniotic sac and yolk sac

这些人工眼睛,确实恢复了盲鼠的视力。猴子的视网膜工作原理和人类的非常相似,因此随后在猴子上进行的试验给了最终的人类试验以成功的希望。
2016年英国《金融时报》欧洲商学院排行榜衡量商学院研究生课程的质量和广度。它基于相关商学院在英国《金融时报》每年发布的5项排行的表现:MBA、EMBA、管理硕士(MiM)和两项高管教育课程排行榜。只有参与所有这5项排名的商学院才有资格获得满分。

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.

女子买房后知是“凶宅” 诉房主要求退款170万

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.

净水市场成家电业高增长独苗 将掀起洗牌大潮

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. 200911/90348.shtml [Accessed May 2019]

FDA. 2014. Home Use Tests: Pregnancy. U.S. Food and Drug Administration. 冲击奖项:很难相信斯特里普得不到最佳女主角提名,而汉克斯在销声匿迹几年后,早该获得一项表演类提名了。 [Accessed May 2019]

March of Dimes. 2015. Prescription drugs, over-the-counter drugs, supplements and herbal products. Led by Letv, Anbang and Eastmoney, 26 newcomers are on the list; 70 percent are privately held. Mi was the fastest riser, with its value shooting up fivefold year-on-year, to come in at $7.3 billion, followed by TCL and Huawei. [Accessed May 2019]

Mayo Clinic. 2015. Prenatal vitamins: Why they matter, how to choose. Social scientists, after crunching data from both sides of the Atlantic, have discovered something surprising: it’s not the amount of racial or ethnic diversity in a community that predicts white resentment and support of anti-immigrant policies, but the pace of change. [Accessed May 2019]

MedlinePlus (ADAM). 2015. Fetal development. 四部门发布意见 要求加强保护陶瓷产业知识产权工作 [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