5 days late and then...

So AF was supposed to come April 17th, I was 5 Days late and then April 22nd I started spotting. April 23rd AF became heavier but nothing compared to what it usually is... I usually only spot for a day after my period. AF lasted the usual 4 days but then I spotted for 3 days after.. we’re going on month 3 of TTC so is this a possible sign?? Also have been very tired and nauseous for about 2 weeks. Just trying to stay positive and not get my hopes up!