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  2. AOL Mail

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    Get AOL Mail for FREE! Manage your email like never before with travel, photo & document views. Personalize your inbox with themes & tabs. You've Got Mail!

  3. Obstetric ultrasonography - Wikipedia

    en.wikipedia.org/wiki/Obstetric_ultrasonography

    In March and April 2015, a post by a pregnant woman named Jen Martin (née Cardinal) and her husband to YouTube, which had been viewed at least 2 million times and had many likes, showed the 14-week-old fetus clapping repeatedly to the song, sung by the parents, "If You're Happy And You Know It". It was later revealed that the video – while ...

  4. A week-by-week guide to common pregnancy symptoms - AOL

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    Pregnancy Symptoms Week 1. It's a bit of a mind-bender, but you aren't actually pregnant during what doctors call "week one" of pregnancy. Instead, week one starts on the first day of your last ...

  5. Timeline of human prenatal development - Wikipedia

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

    Gestational age: 3 weeks and 0 days until 3 weeks and 6 days old. 22–28 days from last menstruation. Embryonic age: Week nr 2. 1 week old. 8–14 days from fertilization. Trophoblast cells surrounding the embryonic cells proliferate and invade deeper into the uterine lining. They will eventually form the placenta and embryonic membranes. The ...

  6. 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 ...

  7. Signs and symptoms of pregnancy - Wikipedia

    en.wikipedia.org/.../Signs_and_symptoms_of_pregnancy

    Although described as "morning sickness," pregnant women can experience this nausea any time of day or night. The exact cause of morning sickness remains unknown. Nausea and vomiting in pregnancy is typically mild and self-limited, resolving on its own by the 14th week of pregnancy. Other causes should also be ruled out when considering treatment.

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  9. Maternal physiological changes in pregnancy - Wikipedia

    en.wikipedia.org/wiki/Maternal_physiological...

    Changes in breast size during pregnancy may be related to the sex of the infant, as mothers of female infants have greater changes in breast size than mothers of male infants. [14] Many people and even medical professionals mistakenly think that breastfeeding causes the breasts to sag (referred to as ptosis).