BC Prenatal Genetic Screening Program

Home

For Women and their Partners

For Health Care Providers

Forms and Links

Dating Tool

In order to calculate the best times for you to have your blood drawn we need to know how far along you are in your pregnancy. If you have had an ultrasound, please enter the ultrasound information. If you have not had an ultrasound, enter either the first day of your last menstrual period (LMP), or your estimated date of delivery (EDD).

First day of my last menstrual period (LMP)

Estimated date of delivery (EDD)

Dating based on ultrasound

My date of birth:
I am having twins or more:	Yes No
I am HIV positive:	Yes No
I have had three or more miscarriages:	Yes No
I have had a previous pregnancy or baby with Down syndrome, or Trisomy 18, or Trisomy 13:	Yes No

This information may not be accurate. Please confirm the best days for you to have your blood drawn with your health care provider.