Some possibilities: 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… A home urine pregnancy test, done correctly, gives a reliable result 3 weeks after sex. Pregnancy is the common cause of a missed period, if sexually active.
Answered 3/23/2015
3.1k views
A doctor has provided 1 answer
2 doctors weighed in across 2 answers
5 doctors weighed in across 2 answers
90,000 U.S. doctors in 147 specialties are here to answer your questions or offer you advice, prescriptions, and more.
Ask your question