C.D.
You're probably not pregnant. I had phantom pregnancies before I got pregnant... Symptoms so strong it was impossible that I could not be pregnant. I don't know if our bodies like to practice before the big event, or if the mind-body connection is so powerful that we conceive in our minds and the body just goes along with it. Personally, I would not continue on antibiotics since they create a slippery slope of secondary problems in the body, and since you do not have a known infection. Take probiotics to put your body back in balance... and get the blood test to put your mind at ease.