Pregnancy, also known as gravidity or gestation, is the time during which one or more offspring develops inside a woman. A multiple pregnancy involves more than one offspring, such as with twins. Pregnancy can occur by sexual intercourse or assisted reproductive technologyChildbirth typically occurs around 40 weeks from the last menstrual period (LMP). This is just over nine lunar months, where each month is about 29½ days. When measured from conception it is about 38 weeks. An embryo is the developing offspring during the first eight weeks following conception, after which, the term fetus is used until birth. Symptoms of early pregnancy may include missed periods, tender breasts, nausea and vomiting, hunger, and frequent urination. Pregnancy may be confirmed with a pregnancy test.

  • Physiology During Pregnancy
  • Development of Embryo and Fetus
  • Maternal Changes
  • Hormonal Effects
  • Postnatal Periods
  • Exposure to Toxins
  • Complication
  • Intercurrent Diseases

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