Nipple Talk

A little back story... I came off of birth control (after 13 years) on November 25, 2017. We’ve not been using protection as we’re TTC, but I was slightly relieved when my period came December 25 so that I could better track my cycle. Obviously, when I came off BC I was immediately trying to get in tune with my body, noticing every little thing. So, last month I noticed my nipples being a little sore, nothing too crazy, a few days before my period. This month, AF is due January 22nd (given my cycle is pretty regular). I’ve noticed my nipples being much more sore this go around. They are longer (if that makes sense) and pretty much staying hard. They haven’t turned noticeably darker In color, though. Do y’all think my body is still readjusting after BC for so long? Not taking any HPTs until AF is officially late just because I want to avoid possible disappointment early on. Currently 8 DPO.