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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
The recovery may help allay some of the gloom around emerging market countries, many of which used strong export growth as a springboard for rapid economic advancement in the early years of this century, before the export boom turned to bust.
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
Your little embryo
The two extraordinary sex toys will go on display at an upcoming exhibition at the Asian Art Museum of San Francisco in the United States.
Joss Whedon came up with the idea of Firefly while he was on a non-working vacation. He was reading a book called The Killer Angels which told the story of soldiers in the Battle of Gettysburg. Whedon was attracted to the idea of the difficulty of the soldiers' everyday lives. He liked that the author focused on the mundane details of how people survived when they didn't have all of their needs conveniently met by modern technology and commercialism.
“气候变化也许是我们这代人的重大挑战，”美国国家航空航天局(NASA)地球科学部主任迈克尔·H·弗莱利赫(Michael H. Freilich)说，他的部门是跟踪全球气温的机构之一。
Amniotic sac and yolk sac
Wishing you a sparkling New Year and bright happy New Year! May the season bring much pleasure to you.愿你的新年光彩夺目，愿你的新年灿烂辉煌！佳节快乐！
See what fraternal twins look like in the womb this week.
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.
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.
If you've been charting your temperature and it stays elevated for 18 days in a row, you're probably 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.
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.
ACOG. 2015. FAQ156. Prenatal development: How your baby grows during pregnancy. American College of Obstetricians and Gynecologists. 在外界看来，中国的经济实力还在从未经历文化大革命的年轻一代中，激发起民族主义情绪。北京方面在对待海上主权争议时的强硬回应，在本已对中国经济实力产生戒心的亚太区加剧了各方对中国军事目标的担心。这也是促使日本决定放松武器出口禁令的原因之一；令中国沮丧的是，其行为还推动邻国支持美国加强自己在亚洲的存在，并使得地区贸易一体化变得复杂。 [Accessed May 2019]
FDA. 2014. Home Use Tests: Pregnancy. U.S. Food and Drug Administration. The tween is a huge star with three million Instagram followers, whose music videos with the popstar Sia have been viewed more than a billion times on YouTube. [Accessed May 2019]
March of Dimes. 2015. Prescription drugs, over-the-counter drugs, supplements and herbal products. Classic cars:Prices plummet as an enormous supply of post-war classics, hidden away on an off-shore island, becomes available for the first time in 50 years. Collectors are especially eager to find Packards, Studebakers, Hudsons, Nashes, Kaisers, and Henry J’s. More’s the surprise because all of the cars are in running condition and are used as daily drivers. [Accessed May 2019]
Mayo Clinic. 2015. Prenatal vitamins: Why they matter, how to choose. Most Catholics (60 percent) and white non-evangelical Protestants (65 percent) say they believe disasters like hurricanes and floods are the result of climate change. [Accessed May 2019]
MedlinePlus (ADAM). 2015. Fetal development. 门窗企业如何通过“互联网”绑定线上消费者? [Accessed May 2019]