white spots on nipples ??

Stacey • 23 🇦🇺 🌈baby Zaiden born🌈
I have tiny white spots on the tips of my nipples . Everywhere I've looked there saying it's my breasts preaparing for breast milk .. took a test yesterday BFN .. AF due the 3rd 
Could it be very early signs of pregnancy?? Or what else is is 
If pic needed will provide 

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