Child Development - Pregnancy

signs of pregnancy and losses in pregnancy

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  • Created by: Tally
  • Created on: 03-06-10 11:35
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Signs of pregnancy
An average pregnancy usually
lasts 40 weeks
All pregnant women produce a special hormone called gonadothrophin
(HCG) as soon as the zygote has implanted in the uterus which shows up
in the blood and urine.
Estimated date of delivery- add 9 months and 7 days to the first day of
the last period or use a pregnancy calendar.

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Multiple pregnancies ­ when more than one foetus develops in the
Identical twins-If a zygote splits completely into 2 parts, each part
develops into an identical baby. They have:
o identical genes
o look the same
o have the same blood group
o are the same sex
o And share a placenta.…read more


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