Unprotected sex on d29 n 30 of 31 cycle on average. brown discharge a week ago. delayed period. pregnant? was having flu on the day i had sex as well

Maybe not, but...: 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 home pregnancy test should give a reliable result 3 weeks after sex, if no normal period occurs.