Many reasons: While it is unlikely you are pregnant, that may still be an issue, so pay attention to how you feel as emergency contraception will not work with an ectopic pregnancy the same way. Many things can alter periods, including stress, exercise, medications, and even age. If your period has usual been very regular, this last cause is unlikely. Also, in the future please use regular contraception.
Answered 10/4/2016
4.5k 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
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