There's nothing worse than baking pumpkin bread that does not rise. It can be very disappointing so here are a few things you can do to avoid this. Check the expiration date on the baking soda and baking powder before you start baking. If either of these two raising agents has expired then it will definitely affect the rise of the bread! You should also make sure that you do not overfill the loaf pan as this will also result in unrisen bread.