Breast symptoms

Emily
Hello,
   Was wondering if anyone has had nipple pain or sensitivity and whether it was a sign of pregnancy or just an impending period.  Also wondering if anyone had an increase of those Montgomery Tubercles and if that was a pregnancy symptom or symptom of impending period?  I'll be two weeks late tomorrow but have had negative pregnancy tests up through yesterday (cd 43).  I know the hpt result of my first pregnancy showed up late but since the pregnancy was a surprise I only tested once at first day of missed period and then a few weeks later.  But I also don't remember the dates now because been a couple of years.  And so now I'm trying to figure out what's going on.  Thanks! :)