Graining weight and stress

3 weeks ago I had a misscarage. 2 weeks ago I had a D&C. Me and my boyfriend just started trying again for me to get pregnant.. I've been so stressed about getting pregnant( I was also very stressed when I was pregnant) I want nothing going more than to have a baby and so does my boyfriend. But I've always had a problem with my weight and gaining weight. Ever since I was in in 7 the garden I struggled everyday with it.. with starving myself to making myself throw up after every meal. I want to be pregnant so bad but just being pregnant the little time I was. I was so stressed about the baby bloat I already was getting. Which make smell not want to eat or go out in public.. ( then picture is my current weight and I struggle everyday with how I look.)