Early Pregnancy
The gestational sac can sometimes be visualized as early as four and a half weeks of gestation (approximately two and a half weeks after ovulation) and the yolk sac at about five weeks gestation. The embryo can be observed and measured by about five and a half weeks. The heartbeat may be seen as early as 6 weeks, and is usually visible by 7 weeks gestation. Coincidentally, most miscarriages also happen by 7 weeks gestation. The rate of miscarriage, especially threatened miscarriage, drops significantly if normal heartbeat is detected.
Read more about this topic: Obstetric Ultrasonography
Famous quotes containing the words early and/or pregnancy:
“Foolish prater, What dost thou
So early at my window do?
Cruel bird, thou’st ta’en away
A dream out of my arms to-day;
A dream that ne’er must equall’d be
By all that waking eyes may see.
Thou this damage to repair
Nothing half so sweet and fair,
Nothing half so good, canst bring,
Tho’ men say thou bring’st the Spring.”
—Abraham Cowley (1618–1667)
“There are highly gifted spirits who are always infertile simply because, owing to a weakness in temperament, they are too impatient to wait out their pregnancy to term.”
—Friedrich Nietzsche (1844–1900)