Sore nipples, not sore boobs??

Rebecca🎶
Hi ladies, I am currently on CD 53. On CD 41 I had a blood test that was negative. However, now my nipples are sore which makes me wonder about having conceived since the blood test. I don't chart bbt or use OPKs so am not sure if I ovulated. Is it possible I still conceived this cycle?
​Did anyone else have just nipple soreness (not breast soreness) before their BFP?