ready4pink:I just used the squeeze test if I couldn't remember. Kinda embarrassing to do in public though. LOL
Dh is always laughing at me b/c that's how I tell, too. He thinks it's funny that I can't remember which side I finished on....and thinks people think it's weird that I "feeling myself up" in public. Lol- I've been a buffet for so long that I couldn't care less what people think.
I agree with pp's...it's whatever works best for you. Your body will adjust and as he gets bigger he'll eat more. Dd didn't nurse on both sides in one feeding until she was almost 3 months old.