Dating a pregnancy from the conception date tired of dating black women

In the second trimester, the determination also defaults to the LMP unless the ultrasound estimate is more than two weeks different from the LMP.

We follow the same process in the third trimester, with a three-week difference.

The expected duration of a pregnancy is 40 weeks from the first day of LMP (four weeks more than the traditional nine months by which many count).

Medical professionals consider delivery premature when it occurs before 36 weeks, and extremely premature when it occurs before 28 weeks’ LMP.

It is also important to note that the phrase “late-term,” popularly used by the media to describe later abortions, has no medical meaning and is not used in any medical documentation.

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