I Am A Jogger. When I Go For A Jog

I am a jogger. When I go for a jog here in the last mouth or so it feels like my right calf will get a cramp in it then i can rest it for a few days it will get better. I may go for a jog then to complete it. Then on the next jog it is back. Is there something more going on with my calf. It hurts and a 1/4 of the way down from my knees just under the thick part of my calf on the right.