Q20. 1. “Is it wrong for me not to want kids?” The short answer is NO, it is not wrong for you to not want kids. Having read your story, with all of the things your are dealing with in your life right now, it makes total sense to me for you to not want to have kids. It would not be responsible parenting to bring a child into that situation. Continue to address your medical problems/mental health issues as best you can, AND IF in the future you feel you have recovered/dealt with those issues, THEN you could begin to talk with your husband about having children.
2. “My question is even with all these problems are we obligated to have kids?” Again the short answer is NO. You are never obligated to have kids. No one, no church, no family members, no society --- nothing obligates you to have any children. Considering your history, your medical/mental health problems, it is a very prudent and responsible choice you and your husband are making – you are practicing Natural Family Planning, you are still trying to be develop your intimacy as best you can, AND you are being very responsible to NOT bring a child into the world in the midst of your problems. GREAT, great, choice.
3. “Can we be married and receive Communion if we go on using the natural child prevention methods the Church recommends indefinitely?” The short answer is YES. You are not committing any sin by not having any children, you are not going against any teachings of the Church, YES you should receive Communion as often as you go to Mass, to give you spiritual strength and courage to keep facing all of your difficulties.
4. “Also is it wrong to tell family members we aren’t having kids due to medical reasons but not telling them what those medical reasons are?” The short answer is NO. You are not obligated to tell ANYONE about your medical/mental health conditions. It is none of their business. I would strongly urge you to be honest with those you go to for professional help with your medical/mental health issues: doctors, counselors, etc. But if you feel uncomfortable talking with anyone else about your conditions, then don’t, it is as simple as that.
Just one more thought from me: I would strongly recommend that you continue working with the treatment center, practicing the cognitive methods that you learned before, and continue to seek professional counseling help whenever your situation allows. That would be the best and most loving choice you can make for yourself, for your husband, and for your marriage.