got pregnant and binge eating

After nearly ten years with anorexia andcreently binge eating I am now pregnant. I don't know how that happened but I am pleasantly suprised.  I lost much and weight and my period for months last yr and then began to binge incessantly from july to now daily. Ill eat anything and stuff my face til ill explode and then some. I looked ok last yr but this year I really got fat and big and my teeth and skin r ruined. My teeth r loose hurt and are see thru. That's why I don't like talkin or smilin anymore.My skin is always horribly broken out no matter what I do to it. And I have stretch marks verywhere. I look like I'm 7 mos pregnant even tho I'm prob 5 weeks . Anyway it may be an eicopi pregnancy which scaresme. Will find out tomorow. But if I am having a baby I want to eat right work out right and relax. But my teeth and body and eating being how they r I don't want to end up 200 lbs xxxl qnd no teeth. Scared and can't affored dentist which I'm sure wil cost a lot. But I need support for this right now. Esp concerned I'm givin myself diabetes bc if I even drink or eat a little my heart rate increases dramatically. And I don't want to rationalize a binge bc I think the baby needs it. Please help me out. Thanks so much