Hi, to answer your question about bleeding during a pregnancy, yes some women do bleed right up until the 3rd month of pregnancy. Most women release an egg approximately 14 days before their period. You said you had sex 2 days before your period was due, but your period didn't actually start for another week after that, so the day you had sex was 9 days before your period, so it is unlikely that you are pregnant but you should never dismiss the possibility that you could be. Every woman ovulates at different times. Basically if you have unprotected sex, consider yourself at risk of falling pregnant. You sound as though you have been responsible and used protection every other time previous to this one mistake. Hey we all make mistakes. Maybe you could ask your doctor for a presciption for the birth control pill.
Good luck in the future...
Suzy