I had sex on the 9th and my period was due on the 28th but i'm only see white discharge that are drying up. i started feel lil cramps in my anus and ovaries on the 26th?

Consider a preg.test: In a woman with regular periods, some causes of a late period include: excessive weight loss or weight gain, increased exercising, emotional stress, having an illness, traveling, medicines (like birth control pills), hormonal imbalances, etc… Seeing a doctor is a good idea if symptoms are persistent, recurring, or worrisome. Pregnancy is the common cause of a missed period, if sexually active.