Hcg line gone light

Hi All

I am 5W2D on 22 Dec but my HCG line has become light today. Pic 1.

Below are tests from dates mentioned.

Only difference is that today I tested with FMU while the other ones are from the evening. I didn't have any prominent symptoms yet except slight constipation which has gone since yesterday. Have some breast tenderness (cant say it increased, decreased or the same) but that I suspect could be due to progesterone. Little back pain from last 3 4 days but that can be anything so discounting for now.

I have my scan on 27 Dec, but am I miscarrying right now??? 😭😭😭