diff --git a/src/init/setupVars.tw b/src/init/setupVars.tw
index 6874fe9f26428276a53ba4350b8ff387b0b7ba51..d3c4c0ae7a339722d0e94bbab9793fb06e2231f6 100644
--- a/src/init/setupVars.tw
+++ b/src/init/setupVars.tw
@@ -6,13 +6,15 @@
 
 /*** pregmod exclusive start ***/
 
+/* Double 20 week point for human data - not a bug. Do not change! (It's transfer point in data source, from data without CTR to with CTR) */
 <<set setup.pregData = { 
 
-human: {type: "human", normalBirth: 40, minLiveBirth: 32, fetusWeek: [9, 20, 40, 52, 64, 80, 384, 99999], fetusSize: [3, 16, 51, 60, 67.5, 71.6, 129.5, 130], fetusCTR: [1, 1, 0.6513, 0.6459, 0.644, 0.6393, 0.58, 0.51], storedFat: 1},
+human: {type: "human", normalOvaMin:1, normalOvaMax: 1, normalBirth: 40, minLiveBirth: 32, fetusWeek: [9, 20, 20, 40, 52, 64, 80, 384, 99999], fetusSize: [3, 16, 25.6, 51, 60, 67.5, 71.6, 129.5, 130], fetusCTR: [1, 1, 0.64, 0.6513, 0.6459, 0.644, 0.6393, 0.58, 0.51]}, 
 
-canine: {type: "canine", normalBirth: 9, minLiveBirth: 8, fetusWeek: [4, 6, 9, 32, 99999], fetusSize: [1, 5, 17.7, 70, 70], fetusCTR: [1, 1, 1, 1], storedFat: 1} /*source data include CTR (not for head to toe), so CTR not apply.*/
+canine: {type: "canine", normalOvaMin:2, normalOvaMax: 8, normalBirth: 9, minLiveBirth: 8, fetusWeek: [4, 6, 9, 32, 99999], fetusSize: [1, 5, 17.7, 70, 70], fetusCTR: [1, 1, 1, 1, 1]}
+
+}>>  /* Source data for canine include CTR (not head to toe size), so CTR do not apply anywhere, always 1.*/
 
-}>>
 
 <<set setup.filterRaces = ["Amerindian", "Asian", "Black", "Indo-Aryan", "Latina", "Malay", "Middle Eastern", "Mixed Race", "Pacific Islander", "Semitic", "Southern European", "White"]>>
 <<set setup.filterRegions = ["Africa", "Asia", "Australia", "Europe", "Middle East", "North America", "South America"]>>
diff --git a/src/js/wombJS.tw b/src/js/wombJS.tw
index 3e37834abebb64c0ef23e1beb0cdb27e56d0abce..e60f148c86cfa15f37a62fb297aec8a1183a538a 100644
--- a/src/js/wombJS.tw
+++ b/src/js/wombJS.tw
@@ -190,7 +190,7 @@ window.WombBirthReady = function(actor, readyAge) {
 	return readyCnt;
 };
 
-window.WombGetVolume = function(actor) { //most code from pregJS.tw with minor adaptation.
+window.WombGetVolume = function(actor) { //most legacy code from pregJS.tw with minor adaptation.
 	var gestastionWeek;
 	var phi = 1.618;
 	var targetLen;
@@ -213,14 +213,14 @@ window.WombGetVolume = function(actor) { //most code from pregJS.tw with minor a
         cage = age - ageMin;
 
         one = (max - min) / (ageMax - ageMin);
-        ctrOne = (ctrMax - ctrMin) / (ageMax - ageMin); // CTR can have negative or positive progression, but we need absolute.
+        ctrOne = (ctrMax - ctrMin) / (ageMax - ageMin);
        
         ctr = ctrMin + (ctrOne * cage);
 
         csize = (min + (one * cage));
         console.log("min:"+min+"  max:"+max+"  ageMin:"+ageMin+"  ageMax:"+ageMax+"  one:"+one+"  ctrOne:"+ctrOne+"  cage:"+cage+"  ctr:"+ctr+"  csize:"+csize+"  final size:"+csize*ctr);
 
-        return csize*ctr; 
+        return csize * ctr; 
         //maybe not very effective code, but simple and easy to debug. May be optimized more in future.
     }
 
@@ -228,7 +228,7 @@ window.WombGetVolume = function(actor) { //most code from pregJS.tw with minor a
 		actor.womb.forEach(ft => {
 			gestastionWeek = ft.age;
 			
-            //for debug only
+            // legacy block for debug only
             let oldLen;
             let oldVol; 
             if (gestastionWeek <= 32) {
@@ -257,6 +257,10 @@ window.WombGetVolume = function(actor) { //most code from pregJS.tw with minor a
             oldVol = ((4 / 3) * (Math.PI) * (phi / 2) * (Math.pow((oldLen / 2), 3))); //for debug 
 
             console.log("fetus.age:" + ft.age + "  oldLen:"+oldLen+"  targetLen:"+targetLen+"  ft.volume:"+ft.volume+ "  old volume:"+oldVol );
+            /*
+                I found, that previous targetLen calculation not exactly accurate if compared to the actual medical data chart for fetal length. It's been rough aproximation based only on pregnancy week (giving smaller fetus size then it should in most cases). So I need all this debug code to compare data and verify calculations. After final tweaking I will remove or comment out legacy code. Please not touch this before it.
+                Pregmodfan.
+            */
 		});
 	} catch(err){
 		WombInit(actor);
@@ -264,6 +268,7 @@ window.WombGetVolume = function(actor) { //most code from pregJS.tw with minor a
 	}
 	if (wombSize < 0) //catch for strange cases, to avoid messing with outside code.
 		wombSize = 0;
+
 	return wombSize;
 };