In the bottom of a saucepan, whisk together the gelatin, cinnamon, pumpkin pie spice and nutmeg. Whisk in the sweetened condensed milk and the eggs. Heat the pot over low heat, whisking and stirring the entire time, for about 8 to 10 minutes until it has thickened. You don’t want any gelatin lumps, so make sure to stir. Remove the pot from the heat and stir in the vanilla bean paste and the pumpkin until creamy and smooth. Let the mixture cool slightly.