Had anyone ever used these ovulation sticks and got reliable results? I got the off internet like 100 for cheap. I also got clearblue digital for confirmation back up since I didn't fully trust the new sticks. I have gotten a low reading from the digital the first day, highs for the next 3 days, and peak this morning. I have YET to get a positive from the sticks! How can the digital be positive but the sticks are not??? Are those cheap sticks from China not accurate? Is the digital not accurate? Which is most reliable? Help! I don't know if I'm ovulating or NOT! So stressful!