PCOS and removing an ovary

hi everyone. so my hubby and I have been ttc for more than a year and the results of our last appt with fertility doc was that I have PCOS and I have a mass over one of my ovaries. her suggestion was to remove that ovary. the news freaked me out and i feel like maybe she could be wrong. has anyone heard about this? is it safe to remove one? what happens if I never remove it? help!