Calories can add up... especially these 3 items. Highly recommend a couple weeks of using something like myfitnesspal to track your calories and better understand how much you are or are not eating. It's a myth that you can eat however much if you just don't eat a lot of carbs.I eat dark chocolate (86% cacao), and I love dried cranberries and almond butter.
Track it, measure it and know how much you are eating. Most women seem to eat 1600-2400 calories a day around here.