Hi Hun,
Keep going with what has been suggested, & although not one to fly in the face of the guidelines, I will tell you what I was told by my HV - 'the guidelines say not to wean until 6 months, but the alternate guidlines say 17 weeks is safe' - make of that what you will, but something i learnt from a mum who's baby boys were on NNU with Abi was that babies fed by tube were more likely to suffer reflux than those not, so that means Abi as she had a tube from birth to 3 weeks, & weaning helps reduce reflux (according to the neonatal team)
So, the crux of the matter - if your baby is at least 17 weeks old, then, according to my HV, have a bash with weaning, BUT WHEN STARTED, DON'T STOP - at that age start with baby rice - no nutritional value, but gets them used to a different texture, then go with veg & fruit puree, but, do it yourself as it reduces the likelihood of allergy - butternut squash is fab, as are apples & pears, then, once you've been at it a few weeks, if all is well, increase baby's repertoire. the 'Plum', 'Organix' & 'Hipp' foods are fab, even for babies with allergies, like mine - if all else fails, mix new foods with the foods baby likes - Abi is currently trying chicken & turkey & fish, but always mixed with butternut squash as it's a flavour she knows & likes.
Good Luck
Amanda & Abi xx