symptoms coming and going?

Jenna • Married 10/10/2015 💍 8 months TTC. BFP first month on Femara ❤️ EDD 11/07/2017 😍👶🏼
I'm almost 7 weeks and the past few days have felt like crapp. No throwing up yet just super tired and nauseous. Then today I wake up and feel great! Just really hungry. Anyone else find their symptoms come and go?