The first question you should ask is how long it has been since you last consumed your edible. It can be anywhere from 30 minutes to 3 hours before you begin feeling anything. If it hasn’t been 3 hours yet, be patient and give it some more time.
If you’re past that mark, there are a few ways it could have gone. Either there were some miscalculations in dosing and you simply haven’t had enough, the THC didn’t activate or burned off during the decarboxylating or infusing process, or the edibles got too hot and burned off THC during the cooking process. This is one of the reasons I don’t recommend using infused butter or oil on direct hot surfaces like a skillet.