Exhaustion already....

Hey ! So I’m about 5-8 weeks pregnant. I’m thinking more like 6-7 weeks but totally unsure till next Monday when I have my ultrasound. My hcg was 12,000 today, does anyone have a guess what that would be in weeks? Yes I’ve looked at the charts just curious to if anyone else was the same. My real question was my

Exhaustion! I can’t be this tired already. Like literally want to fall asleep at work right now 😫 Does anyone have an tips on getting some energy, any specific foods to eat or stay away from that help?