Have you tried her on finger food as well? My DD was like this at 24wk. She will open her month for 1-2 spoonfuls and then she pushes everything out of her mouth. A very helpful HV told me after a couple of weeks of trying to introduce a dinner of finger food, alongside the breakfast of purees. And I can't believe how much she lived the self feeding. She will put everything in her mouth and chew and even swallow! And she will happily sit with us for the entire dinner trying out the ever smaller and soggier pieces of food . After a week of this, I dropped the purees since we were obviously going nowhere with it. She is now on three meals of finger foods, eating whatever I'm eating.
I think you know when it's going well since it's your second? I see all the other 6-7mo are more like your son. Opening their mouths eagerly for the spoon and will eat a whole jar sized of food, and sometimes pudding too.
if she's not very interested, try finger food like the above posters said, but if still not interested, give it another week and try again. I beat myself up for weeks trying to get DD to eat solids and should have just realised she wasn't really ready and given her and me a break from the stress. DD was nearly 8 months when she really took to it.
A cold will affect her too. I'd wait til she was better, and once she's 6 months try a piece of toast or something.
Edwin really wasn't bothered to start with. I just kept offering him a little taste of something each day. Over time he started to take more and now loves meal times and doesn't turn his nose up at anything! As long as she is getting a taste and an idea of what dinner time is about I wouldn't panic it will come in time (just don't let her see you are feeling anxious about it).
cheers! last night she ate about 3/4 of an icecube of carrot so that's the most ever! i'm taking that as a win and carrying on. tried banana for breakfast today. the chunks were just pushed about but some banana mush went in not much but a bit. i'm going to do more finger food once she's properly 6 months and can have anything.
Edwin has a Nuby Nibbler (got it from Sainsburys) and I find it is great for feeding him things like banana which are quite slippery as he can just hold the handle of the nibbler and munch on the net. The net also takes away the fear of chocking as big bits can't get through the net.