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Old 09-09-2016, 04:39 PM
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Default Re: Declines in Teen Pregnancy Risk Entirely Driven by Improved Contraceptive Use

Originally Posted by foundit66 View Post

Alaska Regional Hospital
Pregnancy begins when a woman's ovum is fertilized by a male's sperm. However, often doctors "date" a pregnancy from the first day of the woman's last period. This method of dating a pregnancy results in a slight discrepancy (about two weeks, depending on when fertilization occurred) between the pregnancy in weeks and in the actual age of the baby. For example, a woman may be six weeks along in her pregnancy, but the baby may be only about four weeks old.

Dr. Diana K. Blythe, MD , Pediatrics, answered on behalf of Pediatric Associates
When a pregnancy begins is actually somewhat complicated. Many people think that the pregnancy starts when a sperm fertilizes and egg. This is hard to argue, but doctors tend to say that pregnancy begins when the fertilized egg implants in the wall of the uterus. It really depends on whether you think pregnancy starts at fertilization or implantation.

To make it more complicated, pregnancy dates begin to be counted on the first day of a women's last period. This is before ovulation, before fertilization and before implantation.
Dr. Mehmet Oz, MD , Cardiology (Cardiovascular Disease)
Pregnancy begins when a mature egg from a woman is fertilized by a mature sperm from a man.
Most of the polled obstetrician-gynecologists believe pregnancy begins when the sperm fertilizes the egg. But a minority say it doesn't begin until a week later when the fertilized egg implants in the uterus -- the definition given by the American College of Obstetrics and Gynecology (ACOG).
When does pregnancy begin? Doctors disagree | Reuters

Your attempt at snarkyness aside, looks like the science jury is still out on that one.
Can't help but notice you didn't comment on the fact that the title or your o.p. is untrue.
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