1994 Saturn SL2 Fog Lamps

My 1994 Saturn SL2 has fog lamps, which up until now have worked beautifully. I run them with my headlights, whether its foggy or not. One day I somehow noticed, my fog lights were not on. Both were out, despite the console button indicating that they should have been on. I am wondering why this is happening. They went out, then within a day, I pushed the button on the console (that controls the lamps) and they were working again. Now they both are out again. Any ideas as to the problem? Thanks!