It means positive. If there's a second line at all (or a crossed line, if it's one of those + ones), then it's a positive result. The result is often weaker if you're very early on or edging on the second trimester, or if you took the test during the day when you'd already had quite a bit of fluid before taking the test. If you want a second opinion, then take the test again first thing in the morning before adding any fluids to the system. I hope this is a happy thing, and that congratulations are in order :).