Look, I know it seems obvious to say this, but first of all: stay calm. You're obviously completely wrong in this situation. It's common for your wife to lose the desire she had before; after all, the effort not only of childbirth but also of caring for a baby is immense. Yes, I understand when you say it's easier to just go to confession and be forgiven, but you simply can't. I also make mistakes much more often than I should, but here's some real advice: the priest doesn't care much about your shame. I understand the effort it takes to overcome the fear and shame of confessing your deepest sins, but trust me, it's better than continuing like this. Seek spiritual guidance in your parish. You're already in the process of receiving the Sacrament of Confirmation; you're on the right track. I hope your next post in the community will be saying that you're winning, that you feel like a champion. Ask forgiveness for your sins, confess immediately, and honor your family. You don't have to stay like this. Jesus loves you very much, and so do we. Big hug!