speech delays don't necessarily mean autism. They can mean hearing loss, verbal apraxia, language processing disorders, and probably a whole lot of other things a speech pathologist could diagnose/figure out. My sister was about 3 1/2 when she started speech therapy (she's an adult now). I guess back then, they didn't do early intervention before about 3 or 4, like they do nowadays in the Birth to 3 programs. But, anyways, figuring out if there are issues would be a good step.