Try reading some of the other posts on here regarding this subject. Some of the posters have some great advice!
I was trying to talk my DH into a vesectomy when I read the book “Good News About Sex and Marriage-Answers to your honest questions about Catholic teaching” by Christopher West. It changed my life. I actually converted to Catholicism partially due to reading this book (as well of 10 years of studying Catechism and praying). And I was a Baptist minister’s kid!!!
Please have your DH read this book as well, it will give your marriage a boost as the two of you pray about this together. I have always understood it to be a sin to use ABC or get permanantly “fixed” according to the Catholic church.
Good luck and keep praying! God knows your struggles!