diff --git a/src/js/pregJS.js b/src/js/pregJS.js
index 4a34fced8528668ec84e75fab7d2606e8d052656..3d15ed734efecbe9402e910e8b3b1988332500b1 100644
--- a/src/js/pregJS.js
+++ b/src/js/pregJS.js
@@ -121,7 +121,7 @@ window.setPregType = function(actor) {
 				}
 			}
 			ovum = Math.clamp(ovum, 0, 8);
-		} else if (actor.pregType === 0 || (actor.geneticQuirks.superfetation > 1 && actor.preg >= 0)) {
+		} else if (actor.preg === 0 || (actor.geneticQuirks.superfetation > 1 && actor.preg >= 0)) {
 			if (actor.eggType === "horse" || actor.eggType === "cow") {
 				if (actor.geneticQuirks.fertility === 2 && actor.geneticQuirks.hyperFertility === 2) { // Do not mix with sperm
 					ovum += jsEither([0, 0, 0, 0, 0, 0, 1]);