Should I move in with my gf and her mother?

You should do what makes you happy. But if you get married, why not get your own place? I am not against the idea, but my fiance is living with me and my mother is the same way, we can't sleep together cause we arent married. Its annoying, but i respect that cause its their house. But its nice not having to deal with the in laws especially with being newly weds.....your going to want to do it. Trust me its awkward having mom walk in.