I don't think this is uncommon. My shark week started coming earlier and lighter after I started T, until it stopped altogether. My cramping was about normal the first time, and lessened. So that may be what is happening here? Unless it is worse than it was before, and lasts longer than usual, I wouldn't be concerned about it. I would mention it to your doctor at your next visit. Take some medicine, take a bath, rest. If it persists or gets worse, I would go see whatever medical folks you can see on the weekend.