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  2. Timeline of human prenatal development - Wikipedia

    en.wikipedia.org/wiki/Timeline_of_human_prenatal...

    Gestational age: 5 weeks and 0 days until 5 weeks and 6 days old. 36–42 days from last menstruation. Embryonic age: Week nr 4. 3 weeks old. 22–28 days from fertilization. The embryo measures 4 mm (1 ⁄ 8 in) in length and begins to curve into a C shape. The heart bulges, further develops, and begins to beat in a regular rhythm.

  3. Gestational age - Wikipedia

    en.wikipedia.org/wiki/Gestational_age

    For example, if there is a gestational age based on the beginning of the last menstrual period of 9.0 weeks, and a first-trimester obstetric ultrasonography gives an estimated gestational age of 10.0 weeks (with a 2 SD variability of ±8% of the estimate, thereby giving a variability of ±0.8 weeks), the difference of 1.0 weeks between the ...

  4. Quickening - Wikipedia

    en.wikipedia.org/wiki/Quickening

    Quickening indicates the start of fetal movements, usually felt 14–26 weeks after conception, or between the fourth and sixth month. [5] [6] A woman pregnant for the first time (i.e., a primigravida woman) typically feels fetal movements at about 20–21 weeks, whereas a woman who has given birth at least once will typically feel movements ...

  5. Mom Pregnant with Rainbow Baby Goes Back and Officially Names ...

    www.aol.com/mom-pregnant-rainbow-baby-goes...

    Ultimately, the immune diagnosis helped put them on the right path: She's currently 21 weeks pregnant with her rainbow baby. "So far, baby has looked good and I haven't had any issues.

  6. Gestation - Wikipedia

    en.wikipedia.org/wiki/Gestation

    Human pregnancy can be divided into three trimesters, each approximately three months long: the first, second, and third trimester. The first trimester is from the last menstrual period through the 13th week, the second trimester is 14th–28/29th week, and the third trimester is 29/30th–42nd week. [ 6 ]

  7. Prenatal development - Wikipedia

    en.wikipedia.org/wiki/Prenatal_development

    The first ten weeks of gestational age is the period of embryogenesis and together with the first three weeks of prenatal development make up the first trimester of pregnancy. From the 10th week of gestation (8th week of development), the developing embryo is called a fetus.

  8. RSU 21 School Board OKs post-Labor Day back-to-school start ...

    www.aol.com/rsu-21-school-board-oks-091950033.html

    KENNEBUNK, Maine — Students in RSU 21 will have one more week of sun and fun before returning to class at the end of the summer.. The School Board approved a new 2024-25 instructional calendar ...

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