Quad Soreness with First Cycle???

[6Beast6]

Im on my first cycle, running 500mg/week of test e with .5mg of Anastrozle every other day. Anyways I pinned for the first time ever on wednesday night in my right quad and the soreness is just through the roof. I have no inflammation, no swelling, no bumps, I feel like I did everything perfectly but my quad is so sore it gives out on me time to time and its almost been 3 days now. If anyone could shed a little insight it would be greatly appreciated. Thanks.