Pregnant? Or just flab!

I've been swollen for the past couple of days, and I've felt a weird fluttering like feeling in my abdomen also. I've had a period, although I was 3 days late, I've had diarrhoea and I've gone off bacon, and I love bacon! Also been feeling sick and going dizzy every now and then so now I'm a bit worried and need help! I've attached some pictures of my tummy too! Thankyou in advance!!