Line is getting lighter

Panic mode set it

I only tested this am cause my period is due on sunday and i tested early with a huge bfp

But this morning with a great hold overnight the line is lighter

Should i worry....

I want to keep testing until after af due dare to see if this turns out to be a chemical hoping not Already had a missed miscarriage

Some symptoms went away like sore boobs and feeling sick

Top one was tuesday

Middle one yesterday

Bottoms today