You have to take hcg for at least 23 days which includes the loading days. What kind are you taking, homeopathic or rx? You could keep going if you felt like you finally have you head in the game. You have to mentally be prepared. If you feel like you are just going to keep cheating quit after VLCD21 but wait 48 hours before P3 eating (72 hours for rx) or you will gain more.