Sure, why not. She's sitting by herself which is a great start! So perhaps some steamed carrots or broccoli or potato finger food and just let her play. If she doesn't eat then just delay it another week or so. If you are going the BLS route I wouldn't even bother with the Farex. Just stick with plain steamed vegies. I got more adventurous with the BLS once DS reached 6 months, up until that point I stuck with the plain vegies.