To estimate the length of your pregnancy, enter the first day of your last period and then press 'calculate'.
Once you have confirmed that you are pregnant, the next step is to explore your options. In order to do that, you need to determine the length of the pregnancy. Most physicians make this determination by measuring from the first day of your last menstrual period (LMP).
At Presidential Women’s Center we offer an ultrasound which is the most accurate measure of the length of pregnancy. This calculator is only an estimate, and cannot be used as an accurate measure of length of pregnancy.