Not hungry?

I’m wondering if anyone else is experiencing simply not being hungry? I’m 4 weeks and 6 days and haven’t had any nausea or morning sickness. I don’t know if it’s because I’m bloated/constipated but I’m having trouble wanting to eat anything. It’s not even a specific food, I’m just in general not hungry. I’m just worried cause I know how important eating enough nutrients is... TIA