Many women successfully have babies after having cysts removed. Yes, you can still develop new cysts in the future. Pregnancy has a way of stabilizing hormones and reducung the occurrence of cysts. Six months after surgery sounds like more than enough time to recover enough to conceive. How easily it can be done depends on your own fertility and his. There are fertility and pregnancy forums on MedHelp where you may find some advice in that regard. Hopefully you will never have to suffer from cysts again but it is wise to make use of your fertility now while you still have healthy ovaries. Don't wait for the possibility of a cyst returning that could cause you to lose one (or both) of them!
Cysts can occur at any time. Now that the cyst has been removed you should have an easier time conceiving. I believe wiating 3 months is necessary but you should talk to your doctor. Many women who have cysts before pregnancy see their cyst issues go away after pregnancies.