Early signs

My daughter will be 2 next month. I have felt that she has displayed signs of autism since she was little. I believe that my husband in denial and other family members don’t want to hurt my feelings hear that their grand daughter may have it. I feel like I’m going crazy. What are the signs I should be on the look out for at this age? Her drs aren’t much help either they just have us a survey to fill out and said she was fine. Mind you he survey was not detailed at all!