My girlfriend has been on the pill for 3 yrs and hasn't gotton pregnant yet but I'm worried that now she might be I puled out only after like 5 seconds of inercorse but I'm still worried she says she's not its been 3 weeks since we had sex PLEASE any help would be great...

It's hard to say, when is the last time that she had her period? Does she take the pill every day? No contraceptive is 100% safe. Even though she is on the pill, I would still use a condom also. Or at least spermicidal lubricant.

The last period was somewhere in the last week of June and we had sex on the 7th of July. She takes the pill everyday and says that she should have her period next week sun to Tuesday! Like I said anything would help please I really can't sleep its all I think about I'm 19 and I'm to young to be a father

I doubt that she is pregnant if she is taking her pills as she is supposed to, but as Modular said, no BC is 100% accurate. I conceived while on it. Unfortunately it is a waiting game right now, there is no way to know until she has a missed period. I would not worry about it though, if she does not seem concerened. Many women "know" if they are pregnant.

May I suggest though, if you are not ready to be a father, that you wrap it up every time, and maybe even consider abstaining from sex if possible. No matter how often you have sex or how protected you are, there is still a chance of pregnancy. Good luck.