FRER question-responses appreciated

Anyone know the reason its pink on the strip? I never used a FRER test and i opened it up to get a better look
​Is this what it always looks like inside?
 
​Im only 8-9dpo with a .3 bbt dip today so i know it was way too early to test but had to anyway out of curiosity
​phantomSymptoms ? 
​Sore bbs/larger areolas then ive had
​Cramping yesterday and twinges
​Steady temp rises until todays dip but still above cl