Combine the room temperature cream cheese, sour cream and heavy whipping cream in a large bowl using a hand mixer.
Add the swerve, vanilla extract, stevia, lemon zest and juice. Combine.
Add half the blueberries to the mixture and mash them with a spoon. Add the rest and combine with the hand mixer. Divide the mixture between 6 popsicles and freeze for at least 6 hours, but preferably overnight.