No, actually it's more important that you have the hormones in your blood.
Remember your priorities:
1) Hormones
2) Sleep
3) Nutrition
4) Training
Just because priority #4 gets thrown out of whack, doesn't mean the first 3 should get thrown off too.
Tren will keep you growing on 2 days of training per week, don't you worry. Keep the hormones in your blood for as long and as consistant as possible.