intermenstrual bleeding, pain, increase in discharge and odor

I've been having light intermenstrual bleeding (about a day after intercourse lasting from a few hours to a day), pain during intercourse, random abdominal pain and pressure, increase in discharge sometimes irritating and with odor. I've been reading alot and most of the stuff I've seen says it could be cervical cancer. Is there anything else it could be?
I'm almost 19, I had a baby 18 months ago and was on the pill for about 11 months but I no longer am. I've read that all of these things could increase my chances of cancer.