Being pregnant I decided to cut down/out artificial sweeteners. Lucky Pepsi Next arrived on the scene here in Australia and it's made with Stevia (it's a different formulation to the American version).

Also have had fruit juice flavoured low sugar soda drinks arrive on the supermarket shelves. I usually only drink a glass a day or so and I haven't found it too hard to miss.

Of course you can make your own by diluting a bit of fruit juice with some soda water.