My Sister, Girlfriend and Wife

I've 1 sister and after years apert and both having failed relationships we came back to living together. One thing led to another, and we started a sexual relationship and thus she became my girlfriend. Then she got pregnant and after every test showed no problems we decided to marry. Even with the same surname it was a hard thing to do, because we were apart for years and had different state licenses and showing those we married and then we moved interstate to start our married life together.