Unprotected Sex & Tri-Levlen: What to Do If Your Period Is Late

Question
I have been currently taken birthcontrol (tri-levlen28) for about a year now.. and i take it everyday correctly.. well 3 days ago i had unprotected sex (not for the first time) but he pulled out as always. Today i am on my second green pill ( which means i should of started my period today).. and im very worried. i am cramping as if im gonna start my period.. but i havent.. is this okay that im a little late or should i be worried? please help. Thanks!

Answer
Hello,
I emailed you on Nov. 7th but have not heard back from you. Did you receive the following email?
Hi Amanda,
I'm not a medical doctor so I suggest you check with your physician. But in my opinion, it's possible that you could be pregnant. Even if you take your pills exactly right there is still not a 100% chance that you can prevent pregnancy. The only sure birth control method is abstinence. Or you could just be stressing out--that would cause your period to be delayed. If you want to find a free pregnancy testing center, go to http://www.optionline.org
I would love to hear back from you at DCHERYL51@yahoo.com if you would give me an update. Hope to hear from you soon.
Diane Cheryl
DCHERYL51@yahoo.com