Amy,
Congrats on nursing! Congrats on overcoming difficulties at the outset of your nursing relationship! It sounds like you worked hard to get to where you are.
There are some babies who cut *way* back on frequency/duration of nursing around this age. This may or may not indicate that he is ready to quit completely. It sounds as though he is getting enough from solids, etc that he is not needing breast milk for nutritional reasons. There are still loads of benefits to him getting breastmilk.
When my kids were this age, the top of the list was "mama comfort" -- just reconnecting. They'd go off and explore then come back to 'home base' :-) Nurse for all of 10sec then be off again. I didn't see this as reason to take it away - just another phase of babyhood.
Both of mine nursed until around 2.5yrs....they just cut way back (for the most part) around 15mos. I'd see the amount of nursing go up as they got in teeth, or got hurt, or if we had house guests for an extended stay, or if we traveled....nursing gave them a constant.
Hope this makes sense.
If you are really wanting to continue, you could simply offer it more often. He may or may not take you up on it.
If it's the closeness that you're missing, then perhaps more story times w/ him on your lap...if he'll put up with it :-)
Breast milk in a sippy cup sound like a good idea if you're wanting him to continue to receive the anti-bodies, allergy help, and good nutrients from you.
HTH and makes sense! Please feel free to email if you have questions about what I wrote, etc.
K., mama to
Catherne, 5.5y
Samuel, 2.5y
Baby, due 9/09