Changing the plan

I am following the level 3 Matt Fitzgerald HIM plan from the book Essential week by week training guide. I am at week 12, which is a recovery week because the hope is that I would find an Olympic distance tri to do this weekend. Since life is not perfect, my race is actually NEXT weekend, which puts me back on a week where I will be building volume. My fear is that I will be too fatigued to do well next weekend if I don't back off next week. At the same time, I feel like I need this recovery week after the last three weeks of building. The last couple workouts took everything I had to complete and I was still cramping. Would it hurt me more to do two recovery weeks, do a little more this week and recover next week, or is there another option? This is my first Olympic race and first HIM. Thank you!