hi. i started my 1st on solids at 4mths 2wks. it's ok your hv saying nothing but milk untill 6mths but when your at home and baby wont settle and always wants feeding i think you should do what you feel.
does he finish the 7oz if so give more. making him wait longer wont work, i'd give it more often. try a few weeks more, make abit more and try every 1+1/2hrs unless someone else says they started there's even earlier than i did.
i only made baby rice though, nothing else as you make it with there reg milk. i didn't want to risk giving other foods before the reccomended time he'll prob only want a few spoons but it will make a big difference.