Legal Question in Family Law in California

Yes. If you and your wife were living together or even occasionally sleeping together at the time the children were conceived, there is a legal presumption that you are the father. The burden is on you to rebut the presumption within two years of when the child was born, unless you did not and could not reasonably have known the child was not yours until later. If you wait, the presumption becomes permenant. If you and your wife were not together at all when the children were conceived, then you need the help of a lawyer to ask the court to reconsider its ruling, with the proper legal analysis that the judge will listen to.

You must try to challenge the presumption of paterinty...it may be too late though. Contact me directly.