Given the updated recommendations, anyone thinking of having a child should be screened for genetic carrier status.
The usual practice is to screen the woman first, generally at her OB/GYN office. If she is found to be a carrier, her reproductive partner should be screened for the disease or diseases she carries.
If the couple is already pregnant, both partners are often screened at the same time, to save time in the event that they are both carriers.
In the case of a woman who wishes to become pregnant on her own, or same-sex parents, screening recommendations depend on the heritage of the persons from whom the egg and the sperm originate.
For more information on the screening process, watch the video A Genetic Counselor on Screening