I want to know my due date

Have you seen a doctor yet?

When was the first day of your last period and are your periods regular? As Wondergirl asked, have you seen a doctor yet? They can give you a general idea after an exam and a better estimation once you have an ultrasound done.

A rough guide would be to count back three months from the first day of your last period and add a week.

And of course due dates are rough estimates and are always give or take a week or two.