My husband recently confessed to a 3 month affair with a co-worker. The affair has since ended and only resulted in intercourse twice, but also may or may not have resulted in a pregnancy. His co-worker is pregnant but still married even though she has separated from her husband after having to confess to the affair. She has since tried to threaten and blackmail my husband. As painful as the confession is, we have a strong marriage. Her marriage was the one failing all along and she sought support with my husband. In his compassion, he made very poor decision, two of them actually, even though he used protection both times. His co-worker never uses protection with her husband so the chances are reasonable that her own husband is the father of this child.
It is difficult for my husband and I to pick up the pieces and heal our marriage, especially since she is an unstable party to deal with. Certain days she'll email him saying she wants my husband's friendship back and never meant for them to take their relationship to a sexual level and never wants anything from him, financially or relationally. Other days she is furious if he refuses to be involved in this child's live, should testing prove that he is the father. When we mentioned a waiver of parental rights or her husband adopting the child as he wishes to do if testing proves he is not the father, she gets furious and threathens to take us to court for every penny possible. It is hard to read her, she refuses to perform prenatal dna testing because she claims to intend the best for the baby and doesn't want to take any risks, yet smokes and drinks heavily during pregnancy. She also made her husband move out of their home even though he wished to mend the marriage and has since two months dated another man.
What kind of legal consequences are we up against? If she mends her marriage and her husband raises the child and she refuses dna testing, where do we stand if she changes her mind in 5 or 10 years and divorces then and insists on dna testing and child support at that time. Can we force her into prenatal dna testing because 6 months of threats and blackmail from her make healing difficult on us. Especially when we were planning to conceive a second child of our own this summer.

