the 2 weeks that dont exactly count ?

[mommybencomo]

I am 9 weeks 4 days and was just wondering why are the first 2 weeks included if it says that for those 2 weeks you still arent technically pregnant ?

[AnnieBrooke]

Back in the olden days, the only way the medical profession had to put a "start" point on pregnancy was to begin the count on Day 1 of bleeding of the last menstrual period.  Ovulation was hidden and unknown, but a period is a big, fat signal with a known date.  All the medical books, anatomy scans, procedures, and checkpoints were written that way.  Doctors were taught that way.  So even though ultrasounds have come along since, the 40-week pregnancy count is still used.  (An official full term pregnancy is 280 days from day 1 of your last period, or 266 days from presumed conception.)  Possibly some day, we will know exact ovulation dates every month, but probably until that is universal around the world, the medical method of counting won't change.  Many or most women could tell you the first day of their last period, especially if they are ttc, and in most places and for most women, the day of ovulation is not known.

[racquellelibra]

Cause they count 2weeks from your period doctors considered you pregnant before conceiving well that's what I heard I was wondering the same thing to and i'm still a lil confused to how they calculate things