Can women with MS have babies while on treatment or do they have to stop?

Suggestions. Most MS drugs do have potential for fetal malformations, and are thus "teratogenic" risks. Copaxone seems safest, and Aubagio and Gilenya (fingolimod) may be riskiest. But I would tend to stop any of the MS drugs prior to pregnancy and would NOT restart until after birth, unless breast feeding desired, which would delay restarting med.
Ask your Neurologist. There is no proven curative tx for ms. Whatever is used has to be classified as category a or b in order to be used in pregnancy ask your neurologist or the pharmacist..
Depends. It depends on what medicine u r on. Check with your neurologist.