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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

我的杂物是不是太多了?拥有太多的物品最终会给你带来压力。分清楚你肯定需要和你可以丢弃的物品。
单词mortgage 联想记忆:

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

亲爱的妻子
我去年就说过、今年要再强调的一点是:唯一比预测未来更不招人待见的事情就是公开自己的预言。
1961年,爱德华·索普和克劳德·香农共同研制出第一副可佩戴的电脑眼镜。1968年,伊凡·苏泽兰制造出了"达摩克里斯的利剑"。这是第一台头戴式电脑,也是今天我们所有头戴式电脑的鼻祖。1980年,史蒂夫·曼恩,被称为"头戴式电脑之父",制造出了"可穿戴式电脑",这种电子增强型的眼镜,可以与其他电脑进行无线沟通以及共享视频。接下来的几年,他在眼镜领域继续研究,而在1999年时,他制造出了一副很像谷歌眼镜的眼镜,或者说谷歌眼镜的原型。他叫它做"电子眼镜"。
But only 14,000 tourists took advantage of the visa-free stopover, according to the Beijing General Station of Exit and Entry Frontier Inspection, well short of the 20,000 target officials had previously predicted.

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

Trium的学员重视与资深和国际高管一同学习的机会。一位学员表示:“它允许我们彼此交流(想法),获得和课程本身一样多的额外知识。”
separate
社交名媛卡戴珊8月份参加凯莉·詹娜的19岁生日聚会时,笨手笨脚从跑车出来的方式让她不小心走光太多了。

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

Amniotic sac and yolk sac

单词medal 联想记忆:
澳大利亚整体排名第八,这个位于南半球的国家,“生活质量”排名第四,“冒险指数”排名第九,教育排名第十。

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.

家居家装行业分化时代趋近 2017年将迎来产业创新时代

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.

2013年建材工业亟待绿色转型

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

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