Not in the United States. You must be at least 16 with permission or have a court order.
You are no longer a minor so you are "man and wife".
If by Victoria you mean the Australian state, and not the English one, then females can be as young as fourteen - men, sixteen. However, you will have to have your parent's and judge's/magistrate's permission. Once a female becomes sixteen, she will then only need a parent's permission, and it is entirely her decision after eighteen years of age (likewise with a male eighteen-year-old).
A married 17 year old no longer has a guardian. They are emancipated.
Eighteen.
Not legally. Each partner must be over eighteen.
The laaaw is okay on dating at 17 years. But if you have sex at 17 years then it becomes a serious matter. (from asker of question) Neither of us intend on having sex until we are married (whether it is to each other or not). Can we hold hands, hug, kiss, etc? The law would look at this as an "adult" (eighteen) dating a child (fourteen) unfortunately, causing there to be more restrictions than just that, right?
He was eighteen.
Not before you are eighteen.
A single seventeen year old in Utah technically must have a parent or guardian until they reach the age of eighteen, however, they do not need to live with this parent or guardian. So, yes, they can move out of their parents house, but they must do so with the parent's permission. The only exception to this rule that I know of is a married seventeen year old. If a parent or legal guardian gives permission for their seventeen year old to be married, once that seventeen year old is legally married, they no longer need to have a parent or legal guardian.
With parent consent, yes.
Isn't it legal in Mississippi?
fourteen