Re: 12 1/2 months old, what's average?
Welcome to the forum and congratulations on making it to a year of nursing, and then surpassing that achievment!
There is a really wide variation in what is "average" for year-old babies. Some of them nurse like newborns (10-12 sessions/day) some of them are nursing 7-8 times a day, some are nursing just a few times a day, and some are completely weaned. My kids were both generally nursing 8-10 times per day at a year, and both continued to do so until they transitioned to eating larger quantities of solids at around 14-15 months. Both of them had little interest in solids and remained predominantly breastfed until around 14-15 months, so it makes sense that they needed a lot of nursing sessions. I didn't get down to 2-4 sessions per day until my kids were over 2 years- but again, there is a huge variation in what is normal when you get into toddler nursing!
How short are your cycles? Are you charting? What are your goals, WRT your fertility?
Coolest thing my big girl said recently: "How can you tell the world is moving when you are standing on it?"
Coolest thing my little girl sang recently: "I love dat one-two pupples!"