A couple things. First, airlock activity is not a dependable sign of fermentation. What are you fermenting in? Buckets are notorious for not sealing all the way and allowing the CO2 to escape unseen. Also, you're only about 12 hours post pitch. What yeast did you use? Did you make a starter or rehydrate? I think this is a time for RDWHAHB.
Also, what is RDWHAHB?