The first 7 months of the year I rented, then other 5 I lived with non-family. I don't want to claim HoH and mess up the home owners return. Do I pick HoH or Single?

I'm not sure how it all works, but I don't want to mess up the home owners return by claiming HoH. How does this all work out and which should I pick? I was HoH for the first 7 months of the year, but I'm currently living with my fiancees family due to moving to a new area.