So confused

Rachael
Hiya guys, I'm a newbie at this just looking for some much needed guidance. So first off this may sound weird but my nipple has this little puff of skin under it that I've never seen before. Directly under my nipple whenever it's hard, it's like a puffy little wall of skin about as tall as my nipple is and I don't know how else to describe it, anyone else has this problem? Also I was due for AF on the 2nd and still no show of her, but negative tests. My nipples always get sensitive when I'm due for AF, but now it's them and my whole Brest is not really sore, as much as uncomfortable if I push on them a bit, and fuller.  Normally when I'm late I get killer cramps up until AF shows her ugly face, but this time no cramps, just feeling normal other than my insane boob sensetivity. Much more so than normal. So I'm praying for a BFP this month! And mostly want to know if I'm the only one with the puffiness under my nipple.? Any help is appreciated! Baby dust to all