Adoption

Demetra • Mom of 1 boy& 1girl hoping for girl #2!
Me and my fiance are planning to get married some time next year. He brought up adopting the two children I have from previous relationships. We do plan on having one or two on my own. Has anyone ever went through something similar? Where do we start? Is it a long process? Does anyone know of any websites that have information regarding this? Thank you in advance ladies!