tight tummy

Elena
So my af is a week late, I haven't tested yet but my tummy has gotten firmer and feels weird. I have been getting cramps some are a little bad and some are light, three to four days ago I wiped and there was just a tiny amount of blood just enough to make a light line and that was it, but every since then I have been feeling nauseous and my hips have been hurting to lay on my side.