Concerned About Potential Pregnancy After Interrupted Condom Use - Planned Parenthood Information

Question
Ok so, I had my period (lighter then normal) last week and thought it was the last day of my period on Saturday. So i had sex on saturday. It was protected untill he took the condom off and we had sex for about a minute with out one, then i made him put another one on because i was scared. he came in the condom, while he was in me. that night i got freaked out because i thought maybe some of him sperm got inside me. So i read on a planned parenthood website that the taking 4 birth control pill and then taking another 4 birth control pill 12 hours later is the same as taking the morning after pill. so i did. i have done it before and nothing has happened. so i figured it would be fine.
well then a 4 days later i got my period again, and it was like a full blown period, no spots .. real period. so i am freaked out because i dont know why im bleeding! am i pregnat? is there something really wrong?.
Ive been bleeding for 4 days now? I'm scared!
I thought about it and if im bleeding i'm probably not pregnat. but if im not pregnat then what is wrong with me? i worrie a lot too. it makes me sick sometimes.

Answer
When was the FIRST day of your last period, not the last day of the period. The last day never matters. If you had a light period, I assume it was three days in length. If the last day of your period was on Saturday, then I guess that you started your period on Wednesday, May 10. If so, then you probably will ovulate on May 23 and could only become pregnant if you have unprotected sex on May 22,23,24, or 25. If you had sex and some sperm got into the vagina on May 13, it was too early to become pregnant because you had not ovulated yet. There is no way you can ovulate  that early (cycle day #4).  You correctly used the emergency contraception. It is normal to bleed after stopping the emergency contraception  (breakthrough bleeding). Now, see if youo get your period around June 6. if you don't get your next period by June 13, take a pregnancy test. However, I really doubt that you are pregnant. If you are still bleeding in 10 more days, call your gyn. Whenever  you take extra extrogen and then stop it, you will bleed.