My friend can't stop lying

That is a good point actually. A very good point. I'll keep that in the back of my mind when I'm talking to her about it, since I tend to get cold feet and back out of confrontation situations. That should keep me on the right track, the realisation that her priorities are all wrong and that the attention she gets means more to her than we do.
Thank you very much for your help by the way, you've really made me see sense about this

Are you sure confronting her is the best way? It doesn't seem like she'll stop lying, you'll probably just end your friendship. It'll never be the same once you accuse her of lying about all these things.

If you know the people she's claiming rape about, and they are innocent, get them to go to the police. It is slander to cry rape when it did not happen, and it's a criminal offence. Someone I know claimed one of my friends raped her when it wasn't true, and we got the police involved and she stopped making the accusations.

I would also recommend calling the police whenever she threatens suicide or makes any suicide gestures (I did this when one of my friends threatened suicide, it got him an appointment with a psychiatrist).

If this girl is so messed up and refuses to get help on her own accord then getting the police involved may be the best thing to do to stop her from ruining someone else's life. It sounds like she's in desperate need of help. If her parents are unaware of what's going on, I wouldn't recommend talking to them because they just might not believe you. I really think that going to the police is the best option so that she can get help fast. It's not overracting to call them at all, especially when suicide is being suggested, even though you know she probably won't do it.

Totally agreed with everything said here, really good advice. I am sorry your friend is putting you through all of this, it must be a very difficult time. If the pregnancy is true she will need to seek medical help, the influx in hormones is tremendous and she may not feel adequate enough at this time.

However I think she has probably said it as it possibly the next stage to her story, do not be surprised if she tels you she has had a miscarriage.

I think you should speak to a friend or relative you trust so they can help support you at this time aswell.

Hey,

Just wondering if you've taken any action or anything? Have you decided what you're going to do?

If you know the people she's claiming rape about, and they are innocent, get them to go to the police. It is slander to cry rape when it did not happen, and it's a criminal offence. Someone I know claimed one of my friends raped her when it wasn't true, and we got the police involved and she stopped making the accusations.

I would also recommend calling the police whenever she threatens suicide or makes any suicide gestures (I did this when one of my friends threatened suicide, it got him an appointment with a psychiatrist).

If this girl is so messed up and refuses to get help on her own accord then getting the police involved may be the best thing to do to stop her from ruining someone else's life. It sounds like she's in desperate need of help. If her parents are unaware of what's going on, I wouldn't recommend talking to them because they just might not believe you. I really think that going to the police is the best option so that she can get help fast. It's not overracting to call them at all, especially when suicide is being suggested, even though you know she probably won't do it.