Swollen and hard ovary- cyst again?

Has anyone with ovarian cysts been able to feel them when pressing on your stomach? I was rubbing my tummy the other night lying down and I could feel a hard lump right where my left ovary is. I know that's where my ovary is becuase its right where my scar is from a lap I had 8 months ago removing a complex 4cm cyst caused by my stage 1 endometriosis.  I even had my boyfriend feel it and he said it felt like a rock in there. Hoping I don't have another one but it would explain why my cycle is so off.