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According to the WHO, a preterm birth is defined as "babies born alive before 37 weeks of pregnancy are completed." [20] According to this classification, there are three sub-categories of preterm birth, based on gestational age: extremely preterm (fewer than 28 weeks), very preterm (28 to 32 weeks), moderate to late preterm (32 to 37 weeks). [20]
Multiple births (twins, triplets and higher multiples) count as one pregnancy (gravidity) and as one birth. For example, a pregnant female who carried one pregnancy to term with a surviving infant; carried one pregnancy to 35 weeks with surviving twins; carried one pregnancy to 9 weeks as an ectopic (tubal) pregnancy; and has three living ...
Twins and other multiple births are counted as one pregnancy and birth. A woman who has never been pregnant is referred to as a nulligravida. A woman who is (or has been only) pregnant for the first time is referred to as a primigravida, [21] and a woman in subsequent pregnancies as a multigravida or as multiparous.
A multiple birth is the culmination of one multiple pregnancy, wherein the mother gives birth to two or more babies. A term most applicable to vertebrate species, multiple births occur in most kinds of mammals, with varying frequencies. Such births are often named according to the number of offspring, as in twins and triplets.
The smallest of the octuplets, Odera, died a week after birth. [138] A set of octuplets was born between 13–16 September 2000, in Milan, Italy, to Mariella Mazzara and Giovanni Pierrera of Trapani. One died immediately after birth; two within a few days of birth; and the oldest, Margherita, died a month later on 10 October. [139] [140]
Occasionally a human birth is anything but ordinary. A recent report highlighted a rare case from 2010, in which a baby girl born in Hong Kong was found to be carrying twin fetuses. The study ...
Dec. 16, 2022: Christmas Cheer. Swank and her baby(s) bump got into the holiday spirit. Giving her followers a look at her Christmas decor, the actress used the opportunity to put her own twist on ...
If separation into identical twins occurs, 2/3 of the time it will happen between days 5 and 9. If it happens after day 9, there is a significant risk of the twins being conjoined. Primitive streak develops. (day 13 of fertilization). [1] Primary stem villi appear. (day 13 of fertilization). [1]