I just ran an only testosterone cypionate cycle for 12 weeks because it was my first cycle and went from 150lbs to 165lbs, and i'm about to go on my pct and was wondering how long I have to wait until I start up another cycle. I've read that time on=time off, but since I only ran testosterone, I did not know if I would be able to start a cycle sooner than that. Any advice would be appreciated.