Tying to dump coffee.

Any ideas for a coffee substitute?  I love drinking a cup of coffee in the morning. It smells wonderful, it perks me up, and taste great. However, I use Splenda and powdered creamer so I know it can't be good for me. Any ideas on what to swap it out with. 
I need a good 0 calorie energy booster. Would prefere something that's safe if pregnant as I'm TTC.