Possible pregnancy?

So my period is 4 days late. It was meant to be a 26 day cycle and now I’m on day 30 .. I’ve been feeling a bit nauseous, been having food aversions, been having cramps on and off, headaches, sore boobs on and off and I’ve been really really bloated. I literally look like I did when I was 16 weeks pregnant (my bump was always tiny) and if I was pregnant I would be about 4 weeks. I’m going to take a test on Sunday which is my birthday but could I get anyone’s advice or opinion please? Thanks :)