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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
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
与此同时，前第五届和声明星 Camila Cabello证明了她的独唱生涯正在起飞，因为她的首张单曲《Havana》获得了最佳流行音乐奖。她的胜利意味着Taylor Swift失去了另一个奖项，尽管这对于歌手来说只是众多收获中的一个，但是近期她因为一年的沉寂过后又重新成为焦点。
Wishing you all the blessings of a beautiful season.愿你拥有美丽的新年所有的祝福。
"It sounds like Harvard is intruding too deeply into the private lives of students," said Dershowitz, who has represented a series of high-profile clients, including OJ Simpson.
Amniotic sac and yolk sac
The No. 1 thing in job security is your relationship with your boss. Even if he says, "I'm sorry I really wanted to keep you, but they made me lay you off," that's almost never true. He probably made that decision.
For starters, breaches like that of Bitstamp and the much larger (valued at about $400 million at the time) 2011 hack of the exchange Mt. Gox are often misconstrued as security issues with the currency itself. But they are only signs of flaws in those particular exchanges and not a sign of an issue with the underlying technology. And it is the underlying technology behind bitcoin that most excites. As we wrote in the “Shape the Future” package of our January 2015 issue, most of the vocal enthusiasts so bullish on bitcoin—from big-name entrepreneurs like Marc Andreessen to the developers and miners who spend their days refreshing the bitcoin Reddit page—are more interested in the applications that can be built on bitcoin’s “block chain,” the currency’s foundational backbone, than they are in bitcoin as a monetary system. The block chain allows the secure exchange of any form of value between two entities.
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. The details of her character are being kept under wraps. [Accessed May 2019]
FDA. 2014. Home Use Tests: Pregnancy. U.S. Food and Drug Administration. 4. gam / n . <俚> (尤指美丽女子的) 腿。 [Accessed May 2019]
March of Dimes. 2015. Prescription drugs, over-the-counter drugs, supplements and herbal products. 根据电影监管机构数据显示，中国电影票房销售额在去年同比了增长48.7% [Accessed May 2019]
Mayo Clinic. 2015. Prenatal vitamins: Why they matter, how to choose. 菲律宾警察总长表示，新总统罗德里戈?杜特尔特(Rodrigo Duterte)上台后，不断升级的禁毒战争已造成近1800人死亡。 [Accessed May 2019]
MedlinePlus (ADAM). 2015. Fetal development. 2017“房住不炒”深入人心 楼市供求格局发生可喜变化 [Accessed May 2019]