What could be wrong?

My period is 5 days untimely, it doesn't feel approaching a real term. I dont even have cramps (and I other have horrible cramps). I hold had hindmost pain though and headache. My period is also unbelievably light and it usually starts exceptionally heavy. I didn't consistency any of the signs that my period is coming. I come up with I may be coming down with something but why would that affect my time?What could be wrong?
this sort of thing could come up.. where ur term is irregular.. especially during the first two years you've had it. singular after that span of time should it become regular.but, if u truly feel that something is wrong or out of the norm u should ask a doctor
Are you on the pill? Because the pill is prearranged to mess with period. But if you're that concerned, call your gyn. Good Luck.