Blue Dye vs Pink Dye

Jacki
Hi ladies! I am very new to Glow, and this is my first post. After googling, I still have no answer's...hoping for help here. 😊 We had a loss last month. Decided to try again immediately after watching several friends conceive immediately after a loss. That being said, I am not sure when I ovulated but I BELIEVE I am 9dpo. Today I took 4 tests. 😂 Three different brands. The Clear Blue Plus was vvfl. The Rexall blue dye was vfl, darker than Clear Blue. But the two Dollar General brand $1 pink dye cheapies were both completely negative. I have read so much about false positives with blue dye. Just wondering, being that i got two vvfl on two diff blue dye tests with the same urine (in a cup), could i be pregnant and the pink just not be sensitive enough to pick it up yet? Thank you for all your help!