I'm not her

I'm not the woman my husband married a year ago. A year ago I was playing sports, going to school and I was happier. Now I'm 40lb heavier, covered in stretch marks and acne, I'm not going to school and really doing anything with my life. I feel like I've let him down, I'm so glad I'm pregnant because at least I'm giving him a child. I've changed since we got married and I can't help but feel sorry for him being stuck with me.. I'm just not the person I used to be or who I even want to be..