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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
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！
Among French schools, Toulouse Business School made the best progress, up 14 places, after featuring in the Executive MBA ranking for the first time.
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
WASHINGTON (MarketWatch) — The U.S. economy finally got a big jolt of energy in 2014 after the lamest recovery since World War II. And 2015 is shaping up to be an even better year.
Some scientists believe people with excellent recall and the ability to remember everything use a special mental filing system to keeping things organized in their memories. Mental tricks are also used by magicians to wow audiences with seemingly impossible feats of memory. But do you need to know special tricks or have an eidetic memory to remember everything? If you're worried you've forgotten more in life than you ever knew, don't worry. Science has you covered! Check out these 10 scientific secrets to a perfect memory.
Amniotic sac and yolk sac
"There was a large crowd outside, including my teachers and other parents, people looked quite agitated," Sun said of the moment he was rescued.
三个泡沫分别是：20世纪90年代初的亚洲泡沫，90年代晚期的互联网泡沫，以及在2008年引起华尔街崩盘的那次泡沫，朱克斯称之为“信贷大泡沫”(Great Big Credit Bubble)。
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. adj. 浓缩的；扼要的 vt. 浓缩（condense [Accessed May 2019]
FDA. 2014. Home Use Tests: Pregnancy. U.S. Food and Drug Administration. 201505/375574.shtml12岁的铃木瑟玟(Severn Suzuki)在1992年里约世界高峰会上，对全世界环境部长发出警语，她的演说简单扼要却直指人心，要求“大人们”对于环保要说到做到，否则就是对下一代的不负责任。 [Accessed May 2019]
March of Dimes. 2015. Prescription drugs, over-the-counter drugs, supplements and herbal products. 8. The 2012 Ig Nobel Fluid Dynamics Prize [Accessed May 2019]
Mayo Clinic. 2015. Prenatal vitamins: Why they matter, how to choose. Carry out deleveraging in an active and prudent way. [Accessed May 2019]
MedlinePlus (ADAM). 2015. Fetal development. LED企业如何才能分埃及市场一杯羹？ [Accessed May 2019]