My 18 month old hasn't say a single word yet

Mejo kinakabahan ako sa 18 month old ko, FTM ako kaya I don't know if its normal or not. Di pa sya nagsasalita even the word mama or papa. Mejo picky din sya sa food and he also doen't respond whenever we call his name. Minsan lang din sya mag direct eye contact. I googled this and found out na these are some of the signs of ASD. Natatakot ako sa future ng baby ko. My partner naman thinks that maybe delay lang yung development nya. May naka experience na ba ng ganto sa baby nila na eventually naging better? We're planning to have him assessed for autism, I just want to collect some insights based on your experiences mga momsh, can't help but overthink eh 😭😭😭