I have been having pelvic pain, for 4-5 days. Nurse @ docs office said to wait a couple of days to see if period starts. It is very painful, and gets worse with movement. I took a pregnancy test yesterday, and it was negative. I thought I was starting my period a couple days ago, because I had very light spotting, but it went away. I am wondering if I should see a doc, or wait it out?

I think you should see a doctor. This nurse is making an assumption that your period is starting but your pain is such that you shouldn't wait. This doesn't necessarily make it an emergency, but try to get an appointment asap.