The mother of my son(we were never married)gave another woman I barely know temporary custody of my son.He lives with my mother and his grandfather.This other woman says that we cannot contact his teachers about his homework or his doctor about medical issues.His grandmother has always taken care of these things He is now 8 years old.All of this was done without any of our knowledge.I took a state ordered paternity test after he was born and it says with 99.98% I am the father.What can I do?