Hi doctor..my last period was on sep 18 and it's been 52 days now i haven't got my periods.me and my partner had unprotected sex on 14th oct .

Can do a preg. test: Pregnancy is the most common cause of a missed period. If not pregnant, other causes of a late or missed period include: excessive weight loss or weight gain, increased exercising, emotional stress, having an illness, traveling, medicines (especially birth control pills), hormonal disorders, etc… a visit to one’s Ob-Gyn doctor is a good idea if symptoms are persistent, recurring, or worrisome.