Cramping and red blood spotting few days before period????

Me and my husband have been ttc for almost 3 weeks now and my period is due in 3 days but I've been having cramps and light red spotting. ..like not a full on period but light like the when your period is ending. I've also been really hot the past few days which is weird since I'm always cold. And very hungry/ moody and random nausea throughout the dau...not sure what's going on I doubt I could get pregnant this quick since i just got.off the pill & have an irregular period ...No sore boobs ...Idk ....anyone else feel.like this? Should I test now or just wait and see if my period comes this weekend?