I had one come back abnormal once. One of the nurses who was an aquaintence of mine was very concerned when I didn't immediately follow up with the biopsy procedure as I guess mine was "one of the most serious abnormalities". It IS stressful, and I don't have a strong history of cancer in my family, I can't imagine how much it would be so for you. In my case, I don't recall the details but it was something to do with insurance coverage and a short lapse or something, but I simply couldn't afford to get the testing done. I elected instead to get the pap redone in 30 days. There are a LOT of things that can cause it to kick back as abnormal, things that are very common and very benign. Funny thing there. I went back and was retested in 30 days and this terrible "almost always cancer" abnormality no longer existed. That was back in something like 1998/1999 and I've been "normal" in that regard ever since.
I'd see about having it redone in either 30 or 90 days, if only for your peace of mind. On the off and slim chance there's something to it, it would also have been caught that much sooner, kwim? ((Hugs!))