It's a reflex that goes away around 5-6 months that the automatically push things out of their mouths. If she's doing that and gagging then she's not ready. Give it a little longer and try again. Nothing wrong with waiting. A lot of moms don't start solids until much later...even 12 mo. If she's BF and gaining there is really no need to start solids except maybe to "practice".
April, mommy to Haylea (8/18/09), Hannah (5/22/11) and baby Hogan due 12/12/12! *sent from my iPhone*