ferry from Dominican to Puerto Rico

I wish to travel to Dominican Republic, Puerto Rico, Jamaica, and the Bahamas. Preferably as cheaply as possible, before returning to the DR to live. Does anyone know of any ferries going between Dominican and Puerto Rico? If so, name, time, and costs, please. Your info is greatly appreciated. Thanks!

The Ferry company is called Ferries del Caribe I think that the costs are near $59-$89 us dollars depending on the season, sometimes they include the round trip, sometimes not!! the days of travels are Mondays , wednesdays and fridays at night