ruth, just wanted to give you some support as my DS is just over 5 months and I've just started weaning too, am on day 5 today (so far he's had baby rice, pumpkin and pear), all pureed.
I've been giving most of milk, then the food, then milk to finish, but is maybe more complicated as he has a bottle of expressed milk twice a day and then breast morning and evening cos I'm working full time.
HV sounds very annoying! I'm out in Central Asia and no-one is weighing DS, which makes it more relaxing , he seems very well and looks happy and normal...
I have a lot of questions about it too, like when do you need to offer water, when can they start protein etc, personally am not into the baby led weaning idea, I want to make it fun and of course not force him, but at his age anything he has, just has to be mashed up and offered on finger or spoon. even later I think I will basically help him to eat off a spoon, I just can't see why that's supposed to be bad. I don't mind him playing with food and experimenting, but he needs my help!
anyway just to let you know there are others in the same boat!