The answer is based on many factors, including your age, your past health, your partner's health and your family medical history. Genetic counseling is something to discuss with your doctor.
Genetic counseling is not necessary for every woman. If there is a family history of problems, it is probably advisable to seek counseling. Other situations in which genetic counseling should be considered include:
a woman will be over 35 when she delivers
when either you or your partner has a birth defect
if you have delivered a baby with a birth defect
if you have had three or more miscarriages in a row
if you and your partner are related
Genetic counseling won't give you an exact answer, but a counselor can discuss possibilities or probabilities regarding a planned pregnancy and your baby. Ask your own doctor for advice.