You most definitely need post cycle with 5 weeks of tren...tren shuts you down hard..
dont listen to the guy
PCT is necessary in some situations when users stay on for months and months, or years and years on end
but is not necessary in your case
the time you will be on the pct will just be time your body could be using to return to homeostasis
dont let these fear mongers mislead you, PCT and ancillaries are , by and large, a fairly recent phenomenon, a device internet steroid suppliers use to squeeze more money out of ya