Enough already!

You might be more likely to have a postterm pregnancy if:

• This is your first pregnancy.
• You’ve gone two weeks past your due date in a previous pregnancy.
• Your baby is a boy.
• You have a body mass index of 30 or higher (obesity).
• Your due date was calculated incorrectly. This could be due to confusion over the date of the start of your last menstrual period. It can also happen when the date is calculated based on an ultrasound that’s done after 22 weeks of pregnancy.

Genetics also may play a role in some cases. Rarely, an overdue pregnancy might be related to problems with the placenta or the baby.

Whatever the cause, you’re probably tired of being pregnant, and you might be feeling more anxious as the days go by. Fortunately, an overdue pregnancy won’t last forever. Labor could begin at any time.