hi soul, my girl is seven months but is formula fed so i guess there is really no comparison... our days go like this in case it is of any interest...
6-7am bottle, solids half hour later
12noon lunch - solids
1.30pm bottle
4.30-5pm dinner - solids
7pm bottle

we have only recently dropped the fourth bottle as she is eating more solids now so doesn't want/need it.

i think with breast feeding if you are happy to demand feed then just go with it, i often think breast feeding is more relaxed than bottle feeding, if that makes any sense at all... if i were breast feeding i think i would be the same as you, just giving it whenever they wanted it during the day... (and trying to stretch them out during the night)..... it seems so easy to breast feed on demand as opposed to making up and preparing formula.... anyways i hope with my next i can bf. sounds like u are doing an awesome job... 7 months is my favorite age so far!!