The dream of giving birth to a baby boy can symbolize new beginnings, creativity, and potential growth in your life. The fact that you went to a bed sheets and blankets store in a big carpark with no cars may represent a sense of emptiness or lack of direction in your life. The baby blanket could symbolize protection and nurturing, but the constant disappearance of the child when you looked away could suggest feelings of insecurity or fear of losing something important to you. Your parents showing off the baby could represent a desire for their approval or validation in your choices and decisions. The sudden transformation of the baby into a teenage boy who knows your name could symbolize the growth and development of your ideas and plans. Being at your grandparents’ house could represent a connection to your roots and family values. Overall, this dream may be a reflection of your subconscious desires for growth, protection, and validation in your personal and creative endeavors.