False Positive on pregnancy test?

Hi All, My husband and I have been trying to conceive for just over 2 months now. Yesterday night I got my period cramps but no periods. Today was my “date”. And still no periods. But the cramps are still there. However I decided to take the pregnancy test and before I even set it down, it shot up and showed the two lines of bliss. But I don’t show any symptoms of pregnancy, that is, no vomiting, no nausea, no fatigue, nothing. Just the period cramps. Is it possible that the test showed false positive? Shall go I to my doctor just to be sure???