Preheat your oven to 350°F (175°C). Grease a 9x5 inch loaf pan.
In a large bowl, whisk together the flour, granulated sugar, brown sugar, baking soda, salt, cinnamon, nutmeg, cloves, and ginger.
In another bowl, mix the pumpkin puree, vegetable oil, orange juice, and flax eggs until well combined.
Pour the wet ingredients into the dry ingredients and stir until just combined.
Pour the batter into the prepared loaf pan and smooth the top.
Bake for 60 minutes, or until a toothpick inserted into the center comes out clean.
Let the bread cool in the pan for 10 minutes, then transfer to a wire rack to cool completely.