Non Bio father wants rights
So I was dating a girl that had a baby and since the baby was 3 mo old I have been Daddy he knows me as daddy and I have helped raise him about 3 weeks ago she broke up with me and is now dating someone else. The bio dad wants nothing to do with him and is not on the BC. I want to beable to see my son and continue that relationship not only for me but for him he is the most important thing in the world. He is now almost 18 mo old. What rights do I have if any? Please help!!