Nipples Pain


I am going on my 4th week after quitting birth control, including a week of my period. I've been on it for 12 years. My nips hurt so bad! Like husband keep your dirty paws off them hurt. I'm not currently trying to get pregnant, only had sex 2 days after period ended and also this past Friday(he pulled out). So I'm not thinking I'm pregnant so I guess what I'm asking is has anyone experienced this after stopping birth control?? Is it just a hormonal thing? I was on a mono level pill so maybe my body isn't used to the hormonal changes.