Can my parents be prosecuted even if I'm an adult now?

Notwithstanding any other provision of law, an action for damages for personal injury based on childhood sexual abuse must be commenced within 20 years of the date the limitation period begins to run under subsection (d) or within 20 years of the date the person abused discovers or through the use of reasonable diligence should discover both (i) that the act of childhood sexual abuse occurred and (ii) that the injury was caused by the childhood sexual abuse. The fact that the person abused discovers or through the use of reasonable diligence should discover that the act of childhood sexual abuse occurred is not, by itself, sufficient to start the discovery period under this subsection (b). Knowledge of the abuse does not constitute discovery of the injury or the causal relationship between any later-discovered injury and the abuse.

Despite the abuse you received as a toddler, it is highly unlikely that you will be able to file an actionable criminal complaint so many years later. However, if you have solid proof, you should go to the local police and discuss your situation with them. As for a civil action, you would have to show actual damage before a viable action would be possible. Please speak with a local attorney who handles civil actions for personal injury and/or domestic violence.