Mix the flour, baking powder, salt and sweetener together in a bowl. In a separate bowl, whisk the almond milk, coconut oil and flax egg together. Pour the wet ingredients into the dry and gently mix just until combined. Do not overmix! Next gently stir in the blueberries. Let the batter rest for 5 minutes. Heat some coconut oil in a large skillet on medium heat. Pour a scoop of the batter into the pan letting cook for 2-3 minutes or until little bubbles start to form. Flip and cook for 1 minute on the other side. Repeat until all the pancakes are made