Stopped BC after 16 yrs!

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I've been on bc since i was 18 and decided to get off off it this past month bc hubby and i plan to ttc in a year or so but not trying for it now.  I have known from posts here and from my dr that it could take some time to get a natural period going.  Since being off of it i've felt great, no major side effects.
I did have a withdrawal period about 1 week after stopping the pill that lasted about 4 days. Hubby and i have had sex since me going off the pill but he has pulled out on each occasion.  This past week however my breast, especially my nipples, have been extremely sore. I have never experienced this before. Is this normal for coming off the pill? I am a few days late from when my period is supposed to come but really not sure if maybe i'm pregnant or if this is just a symptom for being off the pill or sign that my period is on its way. Any input is greatly appreciated, thx!