With my first I knew every day, second, minute. This is my 3rd. I've been telling people 28 weeks and I went to the dr yesterday and they were like "So you are 30 weeks and 3 days". Oh - okay then. . . . I seriously didn't think I'd become the person that didn't know. I obviously know my due date . . . but I just don't sit and calculate the weeks like I did before.