it depends on the kind of test you had done as well as the way the lab reports. the herpeselect immunoblot will only return with a + or - and it has false positive issues. If it wasn't the immunoblot or a herpes Wb blood test, ask your provider to call the lab to see if they do indeed have numeric results but just report with + or _.
have you had any genital symptoms that were suspicious for herpes?
At this point, unless you had a herpes WB blood test done ( which isn't likely ), you'll need to repeat your testing with a different test to confirm your status if you've never had any genital symptoms that you can wait to reoccur for a lesion culture.
grace
Some labs have been reporting their results as "positive" or "negative" only, but most ELISA IgG tests still show a number. The number is important because many low positives are actually negatives and require confirmatory testing.
Still, you should ask for a copy of your results - sometimes, doctors only report as "positive" or "negative", disregarding the issues with false positives. When you do receive the copy, post the results here and we'll help you with them.