need help with meals planning

Ok ladies 7.3 weeks pregnant with 3rd child. My other two children are much older (started young.) here's the deal I either feel nauseated with no desire to eat OR so hungry to the point I feel sick. There seems to be no in between. Not throwing up, though feel like I could. Extreme fatigue and no known medical issues. My metabolism isn't what it used to be. I need someone to ever so kindly possibly do a good deed for the day and share a healthy meal plan example they've been following and works for them. I really don't want to pay a dietician since insurance won't cover it. Thank YOUUUUU!!!!❤️❤️