Most common is...: If young, fertile, and having sex, a woman is on the highway to pregnancy... so the most common cause of a missed regular period would be pregnancy. First, she should check a preg. test. A urine test, done correctly, gives a reliable result 3 weeks after sex (3 weeks after when conception might have occurred), or 1 week after missing a period. If not pregnant, there are other reasons for lateness.
Answered 3/13/2015
3.1k views
A doctor has provided 1 answer
A doctor has provided 1 answer
A doctor has provided 1 answer
A doctor has provided 1 answer
90,000 U.S. doctors in 147 specialties are here to answer your questions or offer you advice, prescriptions, and more.
Ask your question