What would happen if i didn't have a ovary?
First, it would depend on why you only have one ovary-- most
females have two. But sometimes an ovary is removed because of a
disease like cancer, although it's more common to remove both
ovaries when cancer is diagnosed. But if for some reason you have
one ovary, you would still have your period (although some sources
say women with only one ovary go through menopause earlier). And
you could still become pregnant (if you wanted to). In fact, unless
you have other conditions (like cysts), having only one ovary
should not be a big problem in your life.