What did they do about the abscess
last year? It might have caused scarring, and scar tissue (adhesions) on
an ovary can hurt like heck when you ovulate. If your doctor suggests it, you might consider removing that ovary. (If there is a lot of complex infection-related residual scarring and so forth there, it's not the best side to ovulate from, anyway, because of the risk of ectopic pregnancy.) If you do remove it, the other ovary would do the work of both.