R.K.
Get rid of all processed foods. Caned/jared soups, pasta sauce, ect --just don't eat them. Look at the sodium levels in your cereal Cherrios are one of the worst.
Celery seed is a good replacement for salt on meats and has no chemicals.
As you are grocery shopping READ THE LABELS. Don't just put things in your cart because you always buy them. Look at the sodium levels in everything you buy. If the sodium level is high look for alternatives. Instead if buying bottled spaghetti sauce -- make your own. Don't be deceived by soup can labels that say 40% less sodium--it is but it is still high in sodium -- it just has less then the regular one sitting on the shelf. Watch for MSG in everything--very high sodium content.
If you learn to shop mostly in the outside aisles of the grocery store, you will be more healthy. Outside aisles--produce, dairy, bread, meats--inside aisles processed food.
Good luck I hope everything is okay with you and the baby.