Note: We have 15 other definitions for NV in our Acronym Attic. new search; suggest new definition; Search for NV in Online Dictionary Encyclopedia
Pregnancy Week by Week: One Week Pregnant. During the first week of your pregnancy, you are not actually pregnant. Conception usually occurs about two weeks after your period begins, which means that your period is counted as the first part of your pregnancy, even though you were not pregnant at the time.
The fifth week of pregnancy is the time of the first missed period, when most women are only just beginning to think they may be pregnant. Yet already the babyâs nervous system is developing, and the foundations for its major organs are in place. At this stage the embryo is around 2mm long.