Jamp, taking half boiled egg white is the easiest way to increase your protein intake as it gets absorbed by the body easily. I don't think you need to start taking when you are preparing to go for IVF, only start when you start your stimulation injection. The nurse at CHR told me that taking egg white is to prevent OHSS, so it is not necessary to take if you don't have many follicles. However, my TCM dr at that time Dr Zou said egg whites will help the follicles to grow, so need to take. Until today, I'm confused, but since there is no harm in taking egg white (I'll discard the yolk due to cholesterol), I take 1-3 half boiled egg whites everyday starting from my 1st injection. After ET, I try to have egg in my meals and also make sure i'm taking enough protein from other food sources. I believe that a healthy and balanced diet is better than purely taking eat whites. My two cents worth, hope it helps.