OK, first off, nolvadex and clomid alone are not sufficient for a PCT. Especially not after a cycle with trenbolone. Trenbolone is a very suppressive steroid. You are going to want to run a very good PCT afterwards to make sure your body properly recovers.
Check out this thread on the prefect PCT protocol brother ->
https://www.evolutionary.org/forums/anabolic-steroids-peds/perfect-pct-simplified!-49252.html
The perfect PCT will ensure your natural testosterone production fully recovers and you keep all the gains you made on your cycle.
The perfect PCT is arguably the best PCT protocol you can run. It is comprised of the SERMS clomid and nolvadex, the AI aromasin, HCGenerate ES (a good natural testosterone booster), N2guard (a liver/organ detox supplement) and the SARMS ostarine and cardarine.
• Clomid and Nolvadex increase levels of LH and FSH in the body, which increase free testosterone levels.
• An aromatize inhibitor will prevent testosterone from aromatizing into estrogen and prevent side effects like gynocemastia and water retention.
• A natural testosterone booster (like HCGenerate ES) will signal the leydig cells in the testicles to restart testosterone production.
• A liver/organ detox supplement (like N2guard) will help cleanse the liver and kidney, regulate blood pressure and balance cholesterol levels.
• Ostarine will prevent muscle loss during a PCT when the body is catabolic from the increased cortisol levels and low anabolic hormones.
• Cardarine will prevent fat gain during a PCT protocol when hormones are low and cortisol levels are high.