Advice please? Is this a mean thing to do? (sorry for the length but its really important)?

If this ends up being long, I am really sorry. Don't yell at me for posting it and such :3 but i need to know and i appreciate the advice.

I think my friend is a pathological liar, and I think she needs help before things get out of hand.

Since 6th grade she has told like 7 elaborate stories about how she was pregnant with some 20 year olds baby. (ive known her since 7th js) She tells this story to people when she gets close enough to them, ive noticed. When I was 13 and first met her, she was super nice and cool. After about a month of being close friends, she told me she was raped and that she was preggers. I felt so bad for her! I did everything to help that I could, and promised to always be there for her. About 5 months in to this pregnancy, I was realizing "dude, shes not showing." And about a week later she told me that in the previous weekend she had had an abortion. YOU DON'T GET AN ABORTION 5 MONTHS IN! that when I knew it was all a lie.

We are in 9th grade now, and she has tried to tell me this similar story four times since then. She also tells people when shes good enough friends with them, much like when she told me. One of our mutual friends and I discuss this, we don't understand it!

She has now told her boyfriend, (who's also my best friend and confides in me about a lot), that shes pregnant. THEY HAVE NOT HOOKED UP, she said it was with that 20 year old, Cameron. Who idek. Rape again I believe. I explained him the whole story in confidence, about how she often spews this lie. She also told me she worked for a porno company. (straight up lie!) That she sent the pictures to Cameron who's in Canada and that he posts them on his website.

HELLO??? That's child porn! Apparently the website has "been up for a year" but it is yet to be shut down. I spent an hour trying to get her admit this was a lie, but she always had an excuse and another lie.

She now has told a big handful of people about this baby, starting a rumor about herself. Im quite positive shes a virgin, btw. She then claimed that the boyfriend told everyone, which is another lie, when she was called in to guidance.

She needs help. I have her text messages saved, and so does my friend that she also did this to for quite some time. We plan to go see the guidance counselor (in confidentiality though) and show them all of these messages and explain the story from the beginning. And then just tell them, "She really needs help and we don't know where else to turn." Which is true.

Is that b*tchy though? Sorry for the length, please answer, say if its a good idea or no. Thanks.