if doc says dec 19th is when i concieved ja563774848 Due September 7; Japan 2 posts17th Apr
If doc says i concieved on dec 19th is that accurate?
TmA's mommy 33 kids; South Carolina 1823 posts17th Apr
It could be off a couple weeks in either direction. They go by your last period but you can ovulate whenever.
sara elizabeth 1 child; Pittsburgh, Pennsylvania 3710 posts17th Apr
It's pretty much a guesstimate based on either the size of your baby or the first day of your last period.