shouldnt i be more excited

Idk why but for some reason I just can not seem to get all excted about this preg. I know that this child is a blessin just like the other two, and I will just love having him or her in my life. But Im just not excited. I dont know if maybe its just becuz it doesnt feel real yet or what. It nvr feels real to me till after I hear that lil heart beat. I guess I always figured that with our next baby i would just be so excited and all. IDK what wrong with me