I stepped of my sidewalk and twisted my ankle and fell down I heard a pop but its not my ankle that hurts it's the side of my right foot and on top mid ways down from my pinky toe I can put some weight on foot depending on how I move and how much pressure I put on the foot and its starting to bruise

Go to the ER and get an X-ray done. There is nothing we can do over the internet to know whether this is a sprain/strain or a break.

Yes get it checked,