The panic attack would strike me as a genetic predisposition and or something caused from the environment (learned from parents or caused by stress or PTSD). IMO, he can figure out how to treat it, live with it successfully, etc. but it may come up as a parent since parenting can be stressful at times. So long as he acknowledges/realizes he has this issue, he can be a good partner and parent. That he says he doesn't know if he is ready to be a father sounds like him being open about his feelings. Given the situation you described, his feelings seem totally reasonable. That he said he would do whatever he can to make it work and that he apologized for the panic attack sounds like he wants to make it work. I have been married more than 3 decades--perhaps the "feeling" of love is means different things to different people? I only know how I feel, I don't know for sure everything going on in other people's heads. My husband is a traditional type of guy who would likely not admit to having any kind of lack of confidence about being a successful parent. There are good things about this but I have also had times in our marriage where I wondered if he was saying things just for my benefit and not telling everything. There is no right or wrong about these kinds of things (words). What matters is what he does. Talk is cheap. If we rely too much on feelings only, that can sometimes cause problems too. Does he have good character? Is he reliable? Do you trust him? These are the kinds of things I would evaluate....Congratulations on your pregnancy!