plan b

Erin

I'm 19 years of age and the last thing I want at this stage is a baby. I'm on the pill femodene and it's grand for me, I take it at the exact same time every day as I have an alarm and I never ever miss a day. While having sex he pulls out, however on Tuesday night at around 9 he came inside me and I freaked out. I spent the next day worrying and all my friends told me the pill should cover me anyway, however on Thursday I decided to take the morning after pill at around 5. Would my chances of not being pregnant be high? Also my pill packet ends on Monday so will my "period" be any later than normal?