So, I have very light colored nips (tmi, I know) with very prominent Montgomery's tubercules. I am 3 days late, which means nothing in my case, but my right areola is much darker than usual and my nipple is bright red. Is it possible for only one nipple to change? Also, my breasts are usually sore from O to AF. This month, just the nipples became sore 1 day before my AF "due date". Any experience sharing is welcomed.