Me and my husband have been separated and with other people for the past nine years. We are not divorced. My question is can he contest the divorce if I get it and does he have to be notified about the divorce even though we haven't been together for 9 years?

"You must notify your spouse (Respondent) that you have filed a petition for divorce. Your Court Clerk can answer questions you have and let you know if there are county specific rules that need to be followed. Most courts require you to notify the respondent in one of the following ways:..."
See: Pro Se – Pro Se Divorce-Pro Se Divorce Litigation (http://divorcesupport.about.com/od/yourlegalrights/a/pro_se_2.htm)

me and my husband have been seperated and with other people for the past nine years. we are not not divorced. my question is can he contest the divorce if i get it and does he have to be notified about the divorce even though we havent been together for 9 years?

He CAN contest it, although I can't imagine any reason that he would. And yes, you have to make good faith attempts to notify him.