Hi Kyra

I'm about your height and at 130-135, I looked just right, too, though at your weight, you are definitely healthy. We are not ttc, but one of the main reasons I am getting in shape and losing weight now is because in about a year or two, DH and I want to start ttc. I know that losing weight will help me get pregnant easier (studies have shown that women who are in a healthy weight range have an easier time conceiving because being overweight can affect ovulation), and when we do get pregnant, being in shape will make for an easier pregnancy. So my heart goes out to you!
I also had an eating disorder (it's how I lost all my weight in the first place) and it is hard now, when I am trying to lose weight the healthy way, to not go back to my old ways. It's a hard habit to break, but if you lose weight the healthy way, you will have a much easier time keeping it off, especially if you adopt it as a lifestyle and not just a temporary change.
TTC for 2 yrs is quite awhile. Have you visited a fertility specialist? I wish I could hug you, because my heart really wants a baby right now, but it's just not the right time for us. I know it's hard to focus on the goal, but just think of all the good you are doing for your future baby!