Sorry, natty = natural. Test and deca both suppress your natural test production. Human Chorionic Gonadotropin (HCG) prevents the nads from shriveling up on cycle and PCT helps restart your natural production after a cycle. Deca is pretty suppressive and has a long half life, so it's active in the body for a long time. A said the one injection you did is enough to shut down your natural production, so you may feel a slight boost from the test C at first, but once it clears your system your test levels will be low until your natural production kicks back in.