I just checked out that website and I would say it is 50/50. It was correct with DS1 but wrong with DS2!
2006 2010 7/12: BFP hCG 180 @ 13dpo then 2101 @ 17dpo
111 @ 6wks3days 165 @ 8wks3days 209bpm @ 10wks2days 147 @ 12wks2days 151 @ 18wks 158 @ 20wks3days
Gender Prediction in Early Pregnancy
SoReady's - Sway for a Girl