diff --git a/src/js/pregJS.js b/src/js/pregJS.js
index 4b9237d938313e4f54af4b5a35555302aabbb4b1..c6d3a9a01acb6d4144f5de57eeca7cc7c110d68f 100644
--- a/src/js/pregJS.js
+++ b/src/js/pregJS.js
@@ -59,6 +59,7 @@ window.bellyAdjective = function(slave) {
 			return `swollen`;
 		}
 	}
+	return "";
 };
 
 /* calculates and returns expected ovum count during conception*/