Hello, I would be happy to help you with your question.
is very unlikely. Just the one missed pill does not increase the chance of pregnancy that much. In addition, the use of emergency contraception
was appropriate. It is not uncommon for emergency contraception to delay your period - this is the most likely explanation. Just to be safe, take a pregnancy test now and repeat in 2 weeks.
I hope that this helps. Please contact me through the PREMIUM SERVICE if you would like more detail or a more timely response - Dr. Timothy Raichle