Cervicitis is not always caused by STDs. I went to the ER when I was 14 wks pregnant. The doctor said, "Oh, you have cervicitis; it's probably an STD." I assured them I did not have an STD, but they basically just smiled and nodded. They gave me an antibiotic injection they said would treat the infection, but it was really the common treatment for some STD! They didn't even tell me that! I didn't find out until my midwife was looking over the report from the ER. Although I may have been a little lightheaded because I had been waiting for eleven hours during which they would not let me eat (because I had stomach pains). Anyway, the results of the panel of STD tests they ran confirmed that I was, in fact, disease-free.