Women with epilepsy are no different from others in this respect. They certainly can become pregnant and have perfectly normal babies. This is a decision that each woman will have to make, but it should ideally be discussed with a physician before pregnancy.
Epilepsy can affect pregnancy, and pregnancy can affect epilepsy.
Both epilepsy and the medications given for its control may have adverse effects on the baby. The hormonal changes in pregnancy can affect the way antiepileptic medications are absorbed and how they are handled in the body. Therefore, a woman's physician may want to check blood levels of anticonvulsants more frequently during pregnancy. There are also major changes in blood level just after delivery, so this is a time when doses might be readjusted. Women with epilepsy taking anticonvulsant medication have a 2-3 times greater risk of having infants with congenital malformations than do those women who do not have epilepsy.