Pregnancy after weight loss surgery

Alison • 37-married 3.29.15-in nursing school-11 yr old stepson-finally pregnant with our first baby together!
I had weight loss surgery 1.5 years ago and now I'm ready to try getting pregnant. My portions are small but I can eat a well balanced diet.  Have any of you had WLS before getting pregnant? Did you see a nutritionist? What was your weight gain? What did your doctor recommend? Did you see your WLS surgeon to consult with him/her or just the OB?