My 4-m.o baby still doesn't recognize plush toys even though they're very colorful. Is it too early for them to recognize them?

Though interests and development varies in children your child should be interested in toys by now. Most 4 month olds are able to reach out for toys and grasp them. Your child should be interested in objects and people and she should be exploring the world with her hands, eyes and mouth. If she's looking and touching around and vocalizing back and forth with you then she should be ok. Either way do highlight this concern you have to your doctor on the next assessment.