PLEASE ANSWER: 12 DPO Could this be it?? or is this line eyes again? UPDATE

Janelle • Mama to 👧🏼 (2/09) + 👶🏼🎀 (8/17) + 👶🏼💙 (2/19)
I don't know what to think anymore.. my husband and I have been TTC for 12 months and honestly, I'm getting so depressed that this isn't happening for us. My first daughter only took 2 months to conceive, why is this one taking so long??