Can you conceive with only 1 ovary??

I am having surgery soon to remove a large mass and my left ovary. I am 23.. don't know if that matters, but I am really worried that I won't be able to conceive:( my husband and I had been trying for 19 months and then we decided to go to a fertility specialist and that's when we got this news.. could this be the reason we weren't conceiving? Could they also check to see if I have blocked tubes during my surgery? Ugh the unknown is so scary. I'd love to hear from someone about this