So I'm 21, and I've had my period since I was almost 15. It has never been AT ALL irregular(as in it took about two periods for it to settle into a pattern it has never deviated from) until this month. My period should have started about four days ago and it's late. I'm a virgin, my eating habits and stress level haven't changed, but none of the usual signs that it's coming have happened. Normally my discharge changes texture, my appetite gets larger, and I feel bloated, but none of that has happened at all and everything is totally normal. I can feel it coming for about five days before it does and I feel NOTHING.
Is there anything that could make me late that I should worry about, or is my body just suddenly deciding to throw a curveball? This has never happened before and it's just got me a little freaked.