Craveing salty food is very common in pregnancy. The increased estrogen also changes your taste buds changing what food tastes like, and often leaving a gross metallic taste.
I had the same thing the first trimester. But then after my taste buds woke back up I only wanted bland foods haha. Give it a couple of weeks you'll be good as new.
Ha ha i wondered why i kept thinking my moms tuna noodle caserole needed salt. She has always been a great cook with great food. And i couldnt eat it. It was to bland