How many calories should I be eating?

Just listen to your body! If you feel full and have enough energy, then of course you shouldn't up your calories.

Really bad advice, sorry. It's very common for people who under-eat to not feel hunger, and it's very common for people who over-eat to feel hungry. "Listening to your body" doesn't tell you how much food you actually need.

OP - you're already a healthy weight. Any further fat loss is going to happen slowly. If you're currently losing 2 lbs a week (or were) then I hate to tell you, but that's very unlikely to be 2 lbs of fat a week. Be eating so low, you are risking losing lean mass (eg. muscle, and bone density). Your body just cannot let go of fat as quickly as someone who is obese. If you lose muscle mass, apart from the fact that's it's very unhealthy, you will likely end up unhappier with how you look. At this point, you're better off focusing on body composition than the number on the scale.

Hunger is a complicated thing, and not feeling hungry is not a good indication that you don't need more food. Drastically under-eating over time can screw up your hormones. If you can get more calories in, you'll probably find that your appetite returns. The easy way to do that is to aim for more calorie dense foods like avocados, nuts, seeds, cheese, eggs, oils, chocolate, peanut butter, protein shakes, full fat dairy etc. Stop eating anything labelled "diet" or "low fat".

Does anyone think I should put my calorie goal up? Also I've seen a lot of people say that they don't eat back their exercise calories but I think I have to? This is so confusing!

You've already been given a lot of good advice. Unfortunately you seem to be listening to the bits you want to hear. Set MFP to lose 0.5 lbs a week at the most, eat back at least most of your exercise calories. If you don't already, look into the option of strength training, which will make a much bigger difference to how your body looks than anything else.