How to record stereo with a mono cord?

Ok so i bought a condenser mic which came with an XLR cord with three pins each side. One into the preamp and one into the actual mic. When i record it only records on the left ear, so i assume its the cord being a mono cord. Is there any way to record in stereo with this? Im using either audacity or mixcraft. like is there any way i could maybe make duplicates of the recording and just change the channels?