is this normal?

Nicolette • Mini Miracle coming 2018
I'm 4w 4d and I get nauseous kind of frequently, more hungry than normal, can't tell if I'll pee if I fart, and peeing a lot.
I didn't experience any of these when I had my first pregnancy/miscarriage at the beginning of 2015. 
So I'm a bit worried something might be wrong or something else.