I would personally say, dont expect much from a second cycle right after. Without intending to do so I made the same mistake, and the results were so barely above the previous cycle even at double dose, that it was more harm than good. Unfortunately my clomid never arrived for my first cycle hence after a few weeks I jumped back on, I gained another 1/4" on my arms after about 8 weeks, some of it was catch up of course but overall, pathetic.

That further instilled in me the need to take time off to let your estrogen levels die down and etc, otherwise your basically in maintenance mode at best.