Is this line progression ok?

Kayla • Wife & mama raising two babes with my angel baby Ada in heaven. ✨ 10/3/2020 Rest In Peace my beautiful baby girl. 💖

The top is from 2 days ago and the bottom is the morning. This is my 6th pregnancy (2 live births, 2 mc and 1 infant loss 💔) and I feel like the bottom should be darker? Af was due yesterday and no crazy symptoms other than very fatigued yesterday and slightly sensitive breasts. Should I call my OB? I’m scared but trying to remain hopeful!