Sadie: First, congratulations! That’s wonderful news, and I wish you both the best! 😀
Now, as for rules…this is where it can get tricky, because while I’m happy to make some generic suggestions, rules are ultimately best discussed between the partners involved.
You know yourself best, so you probably already know of some areas you need help in. I would suggest starting there and working your way around while asking your girlfriend/Mommy for input. *Keep in mind, everything should be up for negotiation and discussion…you should both feel comfortable with any rules before they are set in place.*
Again, congrats! So happy for you both! ❤