I never had cramping but it took quite a while for me to stop having bleeding. I talked to my doctor after I started bleeding every 2 weeks and we adjusted my dose. Everything has been fine since then. Many people say that they have experienced cramping and other issues. If you are concerned I would talk to your doctor.
Pre-T I had severe, crippling cramping at times. As far as pain management I found that a mix of ibuprofen and acetaminophen (2 ibuprofen[400mg] 1 acetaminophen[500mg])helped in conjunction with the application of heat.