I am going to have sex with my boyfriend soon, but I am really scared about getting pregnant. We are going to use a condom but I'm paranoid that I'm going to get pregnant. I could go on the pill but my mum wont let me.. so I'm going to ask my friend's mum, also. If I could get the morning after pill and take it just in case it won't harm me will it?

No, it won't do you harm that once, but that's not going to be a workable birth control plan for you. After all, if you're going to have sex together once, you may very well do so again. You can't be using EC every single time.

EC is very expensive, for starters (over £22 in the UK when you're paying for it yourself) and it also can tend to result in feeling not-so-great for a few days -- and for some women, a few weeks -- and in tossing your menstrual cycle out of whack, which is doubly bad for someone terrified about pregnancy. When you're scared of being pregnant, that period coming on time is a serious sanity-saver. As well, emergency contraception is really not meant to be used save for in emergencies and when you KNOW or strongly suspect a birth control method has failed. It's not designed for use as ongoing backup contraception, and it's also less effective than before-the-fact hormonal methods, like the birth control pill or Depo-Provera.

So, here's what I see as your options right now.

1) Just wait for partnered sex and/or intercourse until you CAN do things which really are needed for that, like getting regular sexual healthcare and being able to use whatever birth control method you need. Sex isn't going to be very enjoyable for you, before, during or after, if you're terrified the whole time, after all, and if it's not something you can feel relaxed and safe with, it just doesn't make any sense to be doing it. Too, please understand that besides having higher risks, and additional risks of pregnancy, vaginal intercourse isn't something somehow SO different from other kinds of sex. In other words, if you and yours have what you need to do other things safely, you're not going to be getting any less intimacy or pleasure from just doing those things for now than you would by adding intercourse, especially since you're female. The majority of women don't reach orgasm from intercourse, and many don't even find it very emotionally satisfying.

2) Read up on condoms, both of you -- after all, avoiding pregnancy should be a concern you share and both commit to -- and learn all you can do to use them right, how they fail, and what you can do to prevent that. By all means, you can keep a packet of EC around for if the condom fails, and use it then if need be. But really, when you're both using condoms properly and consistently, they are not likely to fail. With perfect use, condoms are around 98% effective, and doing things like being sure to use them with additional lubricant, or even adding a spermicidal film (which you can purchase at the pharmacy where you buy condoms) are ways to bump up that effectiveness even higher.

3) Go and get the sexual healthcare and birth control that you need, on your own. You don't need anyone's mother to take you, nor do you need a parent's permission. Based on your handle, it looks like you're in the UK. You can go to a GUM clinic for that, or to a Brook center, for instance. That way, you can get what you need, add the condoms, and feel better prepared. Really, if you can get EC for yourself, you can get an ongoing method of hormonal birth control for yourself.

But I would just advise you to be sure this is something you're ready for, right now. No method of birth control is 100% effective, so one part of readiness for intercourse is just feeling capable of handling an accidental pregnancy if it happens. Mind, when you are using condoms plus another reliable method of birth control, that isn't very likely, but it is still always a possibility that we always need to feel we could at least handle, if it happened. If it doesn't feel like you could deal with that yet, then it's probably best for you to hold off on sex until you feel more capable of handling that risk.

And if your partner can't wait until you're really ready -- including dealing with these risks, and feeling more relaxed about all of this -- and this is seeming like something you feel you have to rush, that's a big sign that HE isn't ready for sexual partnership, either, and that doing this now would probably be a bad idea.

Here are a few more links for you that should help out: