DPO....

so here on glow Im 12dpo, but another app Im 9dpo (put my correct cycle thing in) which one should I use? I tested and it looks negative but I have line eyes. I have extreme amounts of ewcm, a little nausea, lower back pain and my stomach feels full. I have no signs my supposed period is coming on Tuesday. The waiting game is just horrid. This would be our miracle baby.