normal line progression?

Jordan • Mommy to 12 👧🏼👼🏻👼🏻🧒🏼🧒🏼👼🏻👼🏻👼🏻👼🏻👼🏻👼🏻🤰🏻 5 chemicals, 3 miscarriages, 2 twin boys, and 1 bonus daughter (and now 1 more baby on the way)! Wife of my wife 🏳️‍🌈🏳️‍⚧️

Is this progression normal? I don't see a difference between the last 2 line tests. I was told at the ER yesterday that I'm either really early in pregnancy or I'm miscarrying. I'm worried because the last 2 look too similar...

I have no idea what DPO each are, but I took the bottom 2 (digital and line) today. I was at the ER yesterday.