help please!!

Lauren

im so confused. dont know what to think. I am suppose to ovulate tomorrow. well i have been cramping really bad so i just took a test and got my smiley.. positive :) well i was excited and decided to do another with the same urine and same test just to be sure and the 2nd one was negative. same thing happend to me last month. can anyone help? I know that you shouldnt read the lines on the digitals but i always look at them and they do progress and they do get darker when your ovulating just like a regular opk. the positive and negative one both had darker test lines than the control line. Got the positive first..10 minutes later got the negatives with the same urine I used with positive one!