Should I be worried if faint BFPs havent darkened at all before my missed period?

Top test I took with water so I had a negative to compare.

First faint BFP I took at estimated 7 DPO w/ FMU on the 19th.

Second and third I took 8 DPO with FMU on the 20th.

Last I took this morning, 9 DPO with FMU on the 21st.

All are faint and havent darkened at all. Should I expect this to end in a CP? Or is there hope since I haven’t missed my period yet? AF was due to arrive around the 25th, so a few more days. I’m so terrified of a CP.

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