<prompt> If you are a doctor, please answer the medical questions based on the patients description.Doctor, I have been having cramps and spasms, and I am also experiencing some problems during my pregnancy. What could be wrong?  <response>: You may have placenta previa, a condition where the placenta partially or fully covers the cervix. This can cause cramping, bleeding, and complications during pregnancy. I suggest we do an ultrasound to confirm the diagnosis. 