Skipped Period?

Okay so this is bizzare as fuck.I never miss periods or get super late. I started sporting a week before my period and then when my period was due nothing but white discharge.Here I am, 9 days late.I'm just going to assume I'm not going to get it.I'm not even cramping anymore.Like 0 PMS. I'm pretty sure I'm skipping my period.Do you guys think so?If so, what causes that?And when you skip a period does your next period come back on time.And I don't think I'm pregnant.