What are my chances of being pregnant?

i had unprotected sex today, but im on the pill, but it takes a full month to take affect and ivr only been on it for a week.... i have this period tracker app on my ipod and it also has the days ur fertile yup and today was one of mine...im just rly scared|||Your provider, or whoever prescribed you the pill, should have told you to still use another method of BC while first starting the pill. There is always a chance you could have gotten pregnant, especially after having unprotected sex. Good luck, hon.|||theres a good chance of getting pregnant... plan b?|||I would take plan b just for the peace of mind. I did and it helped. A little..|||yea take Plan B|||if it takes a full month to take effect and you've only been on it for a week, having unprotected sex was probably not a good idea.