Hi..I think my average cycle is a 30 days but atimes it comes on d 29th or 31st day. This is day 33 and still no period.My breast have been sore for a week which is normal for my period.also having lower abdominal cramps.My last period was on 7-12-2015,had protected sex wit bf on 28-12-2015 which was after my fertile window.period was due on 7-01-2016.I don’t think I’ve been these late before..help pls!!!