I have had an IUD since October 2006. I was irregular before the IUD, and now my periods are almost nonexistent - I've had 2 in the last year, one in May, the one before in November. I can still tell I have some type of cycle, as I still have cravings/get a bit cranky/bloated monthly, but I don't bleed. I am having a lot of classic pregnancy symptoms - sensitive breasts, sensitivity to smells, nausea, milky white vaginal discharge, red, sore labia, back pain, lightheadedness, hot flashes, sweating. Because I haven't menstruated since may, I don't know when I ovulated. 6 days after the first possible conception, I had a very small amount of bleeding - it only lasted about 6 hours, and was very light red/pink. I don't know if it was from the IUD being moved around during sex, rough sex, or embryotic implantation. I took a test 14 days after the first possible conception (last Thursday), and it was negative. The symptoms have since continued and become more intense. When should I take a pregnancy test? Even if I'm NOT pregnant, at what point should I see a doctor about these weird symptoms? Is it overkill to go see my doctor if I THINK I might be, especially with an IUD?