2 day period??

Hi all well I'm 30 ttc this month my period was right on time but super light and lasted only day and half. It always has been at least 6days and never light is this a sign I could be?? Also my boobs well my whole abdomin was so sore to touch about a week before my period for about 4 days never have I ever been so sore except the day after I gave birth the first time (which was a full term still born 2013) so needless to say I'm super hopeful but not sure what to think I Did take a test 3 days after my so called period and it was neg....any thought please