Remember when conservatives were howling about alleged 'death panels' making their healthcare decisions? They are now making healthcare decisions for women.
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Pregnancy is established when a fertilized egg has been implanted in the wall of a woman's uterus. The definition is critical to distinguishing between a contraceptive that prevents pregnancy and an abortifacient that terminates it.
Implantation of the pre embryo in the uterine lining begins about five days after fertilization. Implantation can be completed as early as eight days or as late as 18 days after fertilization, but usually takes about 14 days. Between one-third and one-half of all fertilized eggs never fully implant. A pregnancy is considered to be established only after implantation is complete.
American College of Obstetricians and Gynecologists
18 states have enacted provisions premised on the notion that pregnancy begins at fertilization or conception blastocyst.
Fairly hard to prove moment of fertilization. Some females claim to know exact moment; most do not know until their period is late or missed. I have read it, did not believe it, until it happened to a cousin. She did not know she was pregnant until she went to emergency room in severe pain, and went on to deliver a baby.
How could she not know? What my mother called "a change of life baby." No more menstrual cycles due to menopause. Her mother and female siblings may not be obese, but way overweight.
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The fertilized egg (zygote) divides repeatedly as it moves down the fallopian tube to the uterus. First, the zygote becomes a solid ball of cells. Then it becomes a hollow ball of cells called a blastocyst.
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