Actually the new recomendations are 4-6 months. There is a higher allergy link in children who start solids after 6 months and before 4 months. So the prime window is 4-6 months.
I have breastfed 5 of my 7 children. All started solids between 4-5 months. None have food allergies and all were ready. We dont do cereals we usually start with some homeade purees and by 6 months they eat table foods.
It is a personal decision. If you are ready at 4 months and baby is ready (good head control, thrust reflex is gone) then try. If you are not then wait. There is no harm in waiting either.
Katie, mom to Olivia (97)
, Veda (98)
, Franky (2004)
, Wendy (2005), JoHannah (2007), Thea (2009) and NEW baby Sunny Ella 12/6/2011