😢Confused and worried...

So I just got my BFP 3 days ago. I was 12DPO. I tested because I was feeling off. Since then, I've been feeling very tired and completely lost my appetite. I have some waves of nausea, not terrible. But mainly I can't stand most food. I nibble at crackers and cheese, fruit, and sip water. But it's a struggle. A few bites and it's hard to keep swallowing. I'm just worried because every site says morning sickness starts at 6 weeks and peaks at 8 or 9. Feeling sick so early seems very atypical and I am afraid it means I may be in for debilitating symptoms later on. Anyone else get queasy early and not completely fall apart later?