I am not a doctor, but I am pretty sure you can have more children. One thing; are you sure it is a cyst? There is a cancer, leiomyosarcoma, that can look like cysts. It is a very rare cancer of the soft tissues. I know because I have this cancer. So please; make sure it is only a cyst. I don't mean to scare you, but it is very important to have it checked. Best of luck.