We will certainly keep you in prayer at Catholic Answers and ask readers of the forums to do so as well.
You do not
have to remain celibate in your marriage -- although it is one option that you and your husband have before you to consider -- but you cannot contracept. (And rest assured that contraception is not fool-proof anyway.) Used correctly, NFP can be extremely reliable and it is possible that there may be methods of use for women in your situation. I recommend contacting the
Couple to Couple League for information on how to use NFP in cases such as yours. You might also contact the
Pope Paul VI Institute, a Catholic center that specializes in women's health issues, for information on what you can do to manage your fertile periods. One other resource you might check out is the
Pastoral Solutions Institute, which can either help you with the marriage issues that you and your husband are facing or refer you to a Catholic counselor in your area who can.
Hopefully, these resources will help you to maintain both your marriage and your health without becoming pregnant again. If you do become pregnant again though, entrust yourself, your baby, your husband, and your children to the mercy of God, and perhaps also to the intercession of
St. Gianna Beretta Molla, a Catholic doctor and mother of three who sacrificed her life for her unborn fourth child. Remember, God can work miracles. But eventually, since we all die some time or another, death may come before you are ready to go. (This can happen to all of us.) Just remember too that death does not separate us from our loved ones (cf.
Rom. 8:38-39,
1 Cor. 15:53-57). You would be in a much more powerful position to protect your children because you would be able to place your petitions for your children's faith directly before God.
Final note: The
National Catholic Bioethics Center can be a helpful source of information on morally licit means of preventing pregnancy. If you do become pregnant again, they may also be helpful in discerning morally permissible methods of saving your life and, if possible, the life of your unborn baby.
Recommended reading:
That Celibate Bachelor Was Right! by Rachel Fay