My experience.
My first pregnancy I felt crook 24/7. Like a constant hung over feeling, my boobs killed, the works.
My second pregnancy I didn't even feel pregnant, not until I started getting a belly!
My first preg didn't end well, my second is currently attached to my boob as I type this.
Please try not to dwell on what the books say you should feel, every person and every pregnancy is so different.