Due dates are the worst. They shouldn't give due dates. They should give due-weeks. A whole 7 day window during which your baby might come. And they should make it week 41, so that the likelihood of your baby coming after your due-week is very small. But no, the very first thing they do when you go in for a pregnancy confirmation is pull out that little wheel and figure out your due date. 40 weeks after your last period. Then for the next 9 months people are asking you, "when are you due?" And you keep saying "October 7". Because that's the due date. Then October 7 comes and goes without anything happening and all of a sudden you go from being a pregnant lady to being a crazy pregnant lady who thinks there is something majorly wrong with her and fears she will remain pregnant forever!