The pigsty is read as mess, neglect or appetites left unchecked. Folk tradition also links it to plenty and to not minding a little dirt in exchange for comfort.
Does the traditional reading fit your dream, or did it mean something else to you?
My Cosmic Code has a private dream journal. Write a dream down and the app picks out the symbols in it, shows what dream books say about them and, over time, which words recur across your entries. The journal is stored on your device only.