You sound really disappointed about the prospect of breastfeeding ending sooner than you hoped. That's a normal feeling, but I don't think it will necessarily happen.
I agree with this. It won't necessarily happen, it's just that the bf is changing. DS was 12 mths when I was pregnant, and I knew my milk had diminished and we were on to colostrum. I introduced a cup of cows milk at night. His feeding pattern hardly changed at all because he was feeding to sleep, and didn't care if he got anything or not. It definitely wasn't about the milk when feeding through my pregnancy. But it became about the milk again once bub arrived Supplementing the milk side of it doesn't equal weaning at this age as there's so much more to the relationship now.