Depending on how far along you are it would probably be a good time to get on Propecia and grab some Nizoral shampoo. Propecia has a strong track record for maintanance as well as providing regrowth in good percentage of people. Nizoral used a couple times a week is good for scalp health which is good for promoting a solid regrowth environment.
Rogaine is mainly for regrowth but is not designed for hairline regrowth but for some it does help the hairline. Lots of good info and support here those more experienced with some products can maybe offer somemore insight.