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- Dictionaryperiod/ˈpɪərɪəd/
noun
- 1. a length or portion of time: "he had long periods of depression" Similar
- 2. the interval of time between successive occurrences of the same state in an oscillatory or cyclic phenomenon, such as a mechanical vibration, an alternating current, a variable star, or an electromagnetic wave.
adjective
- 1. belonging to or characteristic of a past historical time, especially in style or design: "an attractive and beautifully modernized period house"
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Sep 27, 2016 · Menstruation occurs between menarche (pronounced muh-NAHR-kee), a girl's first period, and menopause, when menstrual cycles end. 1 The average menstruation time in normally menstruating women is about 5 days. 2 In the United States, most girls start menstruating shortly after 12 years of age. 3
For most women, a normal menstrual cycle ranges from 21 to 35 days.1 However, 14% to 25% of women have irregular menstrual cycles, meaning the cycles are shorter or longer than normal; are heavier or lighter than normal; or are experienced with other problems, like abdominal cramps.2 Irregular cycles can be ovulatory, meaning that ovulation occurs, or anovulatory, meaning ovulation does not occur. The most common menstrual irregularities include:
Pregnancy is the term used to describe the period in which a fetus develops inside a woman's womb or uterus.Pregnancy usually lasts about 40 weeks, or just over 9 months, as measured from the last menstrual period to delivery. Health care providers refer to three segments of pregnancy, called trimesters. The major events in each trimester are described below.1
Pregnancy is the term used to describe the period in which a fetus develops inside a woman's womb or uterus. Pregnancy usually lasts about 40 weeks, or just over 9 months, as measured from the last menstrual period to delivery. Health care providers refer to three segments of pregnancy, called trimesters.
For most women, a normal menstrual cycle ranges from 21 to 35 days. 1 However, 14% to 25% of women have irregular menstrual cycles, meaning the cycles are shorter or longer than normal; are heavier or lighter than normal; or are experienced with other problems, like abdominal cramps. 2 Irregular cycles can be ovulatory, meaning that ovulation occurs, or anovulatory, meaning ovulation does not occur.
Weaning is the process of switching an infant's diet from breast milk or formula to other foods and fluids. In most cases, choosing when to wean is a personal decision. It might be influenced by a return to work, the mother's or infant's health, or just a feeling that the time is right.1
Jan 31, 2017 · Pregnancy is a period of up to 41 weeks in which a fetus develops inside a woman’s womb. NICHD conducts and supports research and training to help promote healthy pregnancies, with a focus on the important events that occur before, during, and after pregnancy.
The first stage of labor happens in two phases: early labor and active labor. Typically, it is the longest stage of the process.
Health care providers now define “full-term” birth as birth that occurs between 39 weeks and 40 weeks and 6 days of pregnancy. 1 Infants born during this time are considered full-term infants. Infants born in the 37th and 38th weeks of pregnancy—previously called term but now referred to as “early term”—face more health risks than do those born at 39 or 40 weeks. 2
May 20, 2016 · Having a healthy pregnancy is one of the best ways to promote a healthy birth. Getting early and regular prenatal care improves the chances of a healthy pregnancy. This care can begin even before pregnancy with a pre-pregnancy care visit to a health care provider.
