Hungry al the time

Patricia • I am 40 years old and just found out that I am expecting! It was definitely a shock! This will be my 2nd, 1st for my SO!
I am only 5w, and I am hungry all the time. Today is the first day I have actually felt good! I eat healthy but if I don't munch on something every hour, I feel a little nauseous! Anyone else feeling the same?? I don't want to gain too much weight this pregnancy! Gained 60lbs with my first 15 years ago!!