Today marks five full weeks since my LMP (that's Last Menstrual Period, not Lunar Module Pilot). Yet, I am unsure of how pregnant I am. Do you reckon your weeks like birthdays (you turn 1 after you have completed your first year) or is it more like elementary school grades (you are a first grader while you are completing first grade)?
Am I five weeks pregnant now? Or am I in my 6th week?