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    Pregnancy, process and series of changes that take place in a woman's organs and tissues as a result of a developing fetus. The entire process from fertilization to birth takes an average of 266–270 days, or about nine months. (For...see more

    Insight :Blood volume increases by 40 to 50 percent during pregnancy

    Insight :The uterus grows from the size of an orange to a watermelon

    Insight :Breast milk production can begin as early as 14 weeks

    Insight :A baby can recognize their mother's voice by the third trimester

    Quiz :What is the average duration of a human pregnancy from fertilization to birth?

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  2. WebFind comprehensive information on pregnancy week by week, fetal development, symptoms, health, diet, fitness, preparing for baby, and more. Join the community for baby name ideas, due date discussions, local …

  3. WebA comprehensive guide to the nine months of pregnancy, with information on baby size, milestones, symptoms and signs for each week. Learn what to expect in the first, second and third trimester, and how to prepare for …

  4. WebPregnancy is the time during which one or more offspring develops inside a woman's uterus (womb). A multiple pregnancy involves more than one offspring, such as with twins. Pregnancy usually occurs by sexual …

  5. You and your pregnancy at 1 to 3 weeks - NHS