I'm having mine on May 19 as well. I was supposed to have started my two diet on Monday the 5th, but I was preoccupied. I had just graduated from college on Saturday, May 3rd and I was just so caught up in all of that. I got a phone call yesterday from someone at the doctor's office checking up on how I was doing on my diet and I was like: what diet? I got started on my diet yesterday and it was a rough go. Today hasn't been that bad, but I am hitting some real rough patches.