5+3 weeks sudden loss of appetite

Alina🍒 • Happily married. Baby boy was born 12/17/2015 and our little girl got here on 04/03/2020 ❤️
So for the first few weeks of pregnancy my appetite was pretty big, but today I just don't have any. Not feeling sick, I just don't want anything. This isn't normal for me. A few days ago I had my first wave of nausea, but that was only one time. Anyone else is experiencing this? Is this normal?