Purpose: Autism-specific behaviors begin with some preliminary symptoms and can be detected during the pre-verbal languagestage or after diagnosis. Early diagnosis and early intervention can begin if caregivers or parents identify these precursors ofbehaviors during the pre-diagnostic period, and the person with autism can receive effective and timely training. The goal ofthis study was to find out what non-typical language and communication behavior parents or caregivers of children with autismmight have noticed before they were diagnosed.Design/Methodology/Approach: After applying exclusion criteria, fifty participants (47F, 3M) who are primary carers of 3-10-year-old children with autism were accepted into the study Data was gathered using a two-part interview form with 37questions. Face-to-face interviews were held.Findings: Descriptive and situational analysis methods were used to analyze the data. Following the analysis of the findings,behaviors such as not making eye contact, not responding when their name is called, and indifference toward their parentswere observed in the children of the participants who were diagnosed with autism till the age of 18 months.Highlights: When the findings were evaluated, it was discovered that the individuals' issues began at an early age. In terms ofautism suspicion, family observations are crucial; early symptoms are predictors of various developmental stages. Accordingly,families should follow their children more closely and they should be informed more by experts so that families can notice thedifferences in developmental areas.