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Offering online communities, interactive tools, price robot, articles and a
pregnancy calendar. Content spans pre-
pregnancy to after birth.
www.pregnancy.orgThe
pregnancy guide can help you find information on
pregnancy and childbirth, including a week by week
pregnancy calendar, signs of
pregnancy,
...pregnancy.about.comPregnancy can be a joyous time. But it also can be a time of uncertainty and worry. Getting informed is the first step in keeping yourself and your baby
...www.4woman.gov
From trying to conceive to the first trimester to labor, learn what to expect during your
pregnancy.
www.webmd.comThis article is about
pregnancy in female humans. For
pregnancy in animals, see Gestation. For
pregnancy in males, see Male
pregnancy.
...en.wikipedia.orgAmazing week by week 3D images of your baby's development. Our
pregnancy calendar tells you everything there is to know about every week of your
pregnancy!
3dpregnancy.parentsconnect.comMaking sense of the confusing symptoms and signs of
pregnancy.
www.pregnancy-info.net
Wikipedia
Pregnancy
From Wikipedia, the free encyclopedia
This article is about pregnancy in female humans. For pregnancy in other animals, see Gestation. For pregnancy in males, see Male pregnancy.
A pregnant woman near the end of term
Pregnancy (latin graviditas) is the carrying of one or more offspring, known as a fetus or embryo, inside the uterus of a female human. In a pregnancy, there can be multiple gestations, as in the case of twins or triplets. Human pregnancy is the most studied of all mammalian pregnancies. Obstetrics is the medical field that studies and treats pregnant patients.
Childbirth usually occurs about 38 weeks from fertilization, i.e., approximately 40 weeks from the start of the last menstruation. Thus, pregnancy lasts about nine months, although the exact definition of the English word “pregnancy” is a subject of controversy.
One scientific term for the state of pregnancy is gravid, and a pregnant female is sometimes referred to as a gravida.[1] Both words are rarely used in common speech. Similarly, the term "parity" (abbreviated as "para") is used for the number of previous successful live births. Medically, women who have never been pregnant are referred to as "nulliparous" ("gravida 0, para 0"),[2], during a first pregnancy as a "primigravida" ("gravida 1, para 0") and in subsequent pregnancies as "multigravida" or "multiparous".[3] Hence during a second pregnancy a woman would be described as "gravida 2, para 1" and upon delivery as "gravida 2, para 2". Incomplete pregnancies of abortions, miscarriages or stillbirths account for parity values being less than the gravida number, whereas a multiple birth will increase the parity value.
The term embryo is used to describe the developing offspring during the initial weeks, and the term fetus is used from about two months of development until birth.[4][5]
In many societies' medical and legal definitions, human pregnancy is somewhat arbitrarily divided into three trimester periods, as a means to simplify reference to the different stages of prenatal development. The first trimester carries the highest risk of miscarriage (natural death of embryo or fetus). During the second trimester, the development of the fetus can be more easily monitored and diagnosed. The beginning of the third trimester often approximates the point of viability, or the ability of the fetus to survive, with or without medical help, outside of the uterus.[6]
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