My experience was very similar to Jess. I fell pg when Jack was 11months old, and although I could no longer get much milk when expressing, Jack kept feeding, but dropped one feed at a time until we were just down to the pre-bed one. I didn't even notice him losing interest in that, but one night (he was 14months) he just didn't want to feed, so we cuddled instead. I was so sad that we had had our last feed without me even knowing it was the last feed IYKWIM? At least Tom is now still going strong at 11 months so hopefully I'll get to 2 yrs this time.

It does sound to me like he might be weaning. As Barb says, maybe try not feeding and see what happens, but I understand how hard it is when you really want to keep feeding. The one thing I'm really glad about though is that Jack did it his way in his own time. That's the most important thing for me.