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A fetus born prior to the 37th week of gestation is considered to be preterm. A preterm baby is likely to be premature and consequently faces increased risk of morbidity and mortality. An estimated due date is given by Naegele's rule. According to the WHO, a preterm birth is defined as "babies born alive before 37 weeks of pregnancy are completed."
Ovulation marks the end of the follicular phase of the ovarian cycle and the start of the luteal phase. Ovulation is the release of eggs from the ovaries. In women, this event occurs when the ovarian follicles rupture and release the secondary oocyte ovarian cells. [1] After ovulation, during the luteal phase, the egg will be available to be ...
Naegele's rule is a standard way of calculating the due date for a pregnancy when assuming a gestational age of 280 days at childbirth. The rule estimates the expected date of delivery (EDD) by adding a year, subtracting three months, and adding seven days to the origin of gestational age.
A baby born at 36 weeks has a high chance of survival, but may require medical interventions. Fetus at 38 weeks after fertilization. Weeks 36 to 40. Gestational age: 35 and 0 days until 39 weeks and 6 days old. Embryonic age: Weeks nr 34–38. 33–37 weeks old. The fetus is considered full-term at the end of the 39th week of gestational age.
General fertility rate (GFR) - the number of births in a year divided by the number of women aged 15–44, times 1000. It focuses on the potential mothers only, and takes the age distribution into account. Child-Woman Ratio (CWR) - the ratio of the number of children under 5 to the number of women 15–49, times 1000.
Prenatal development (from Latin natalis 'relating to birth') includes the development of the embryo and of the fetus during a viviparous animal 's gestation. Prenatal development starts with fertilization, in the germinal stage of embryonic development, and continues in fetal development until birth . In human pregnancy, prenatal development ...
Age and female fertility. Female fertility is affected by age and is a major fertility factor for women. A woman's fertility is in generally good quality from the late teens to early thirties, although it declines gradually over time. [1] Around 35, fertility is noted to decline at a more rapid rate. [1] At age 45, a woman starting to try to ...
The Billings ovulation method is a method in which women use their vaginal mucus to determine their fertility. [3] It does not rely on the presence of ovulation, rather it identifies patterns of potential fertility and obvious infertility within the cycle, whatever its length. Effectiveness, however, is not very clear.
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