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Raspberries (and blackberries and all those similar) have a short shelf life which is why you rarely see them sold in stores. They might last a day or two but go bad fast (even with refrigeration.) Blueberries also go bad quickly but can last a bit longer. Yes, refrigerate them, but don't wait too long to eat.
Fresh, ripe blueberries freeze well if you wash them, spread them in a single layer on parchment paper on a baking sheet, freeze until solid and then transfer them to an airtight freezer container, according to MarthaStewart.com. They can be frozen for up to six months by this method.