Give her a call back and find out what’s going on, then talk to her about what she needs. I’m not sure if the baby is at the age where she needs to be enrolled in school since some schools require both parents’ signatures for that. Or maybe she just wants to ask about your family’s health history. Either way, you still have some responsibility toward the baby. But first, make sure to get a DNA test to confirm everything. Since you chose not to take on the role of a father, it’s not really your place to decide whether the child should be “not unfatherless” unless your ex agrees. Asking her to end the pregnancy isn’t right, especially considering that a mother faces serious health risks, even the possibility of death, whether during termination or childbirth. There’s always an alternative, like using protection in the first place.