You married Fred at the Burrow, since Molly was begging for you to get married there. After that, you went on a honeymoon to New Zealand and enjoyed every second there.
Two years later, you ended up having two twins— two boys, named Remus Regulus Weasley and Sirius Lee Weasley— and a little girl named Molly Minerva Weasley.
Remus ends up in Ravenclaw whilst Sirius ends up in Slytherin; the first two Weasleys that are not in Gryffindor. Molly ends up in Gryffindor, just like every other Weasley.
Astrid and George end up having three more kids, Eugene Charles Weasley, William Septimus Weasley and Helena Lucy Weasley.
Astrid ended up working as a teacher at Hogwarts, the only Defence Against The Dark Arts teacher that lasted more than one year.
You worked with the twins at the shop for the rest of your life, and you and Sirius decided to sell 12th Grimmauld Place as it was a place that never made him happy. Sirius ended up living with Remus, Tonks and Teddy, in a small cottage a bit further away from the Weasleys, like you and your family.
You and Sirius officially adopted Buckbeak and had some flight lessons with the kids, which they enjoyed a lot. And of course, Uncle Charlie came to help sometimes...or like most of the time.
There was never a dull moment in your life. Being a Weasley, after all, meant that everyday wasn't going to be the same. But you loved it. And you wouldn't change it for the world.