[eunoia]

Your friend should tell her parents if she does not wish to terminate (end) the pregnancy. They are going to find out anyways, right? Running away isn't a very realistic solution. It's a nice thought, and everyone wishes (at some point or another) that they could just leave and start over in a place where no one knows their name. But that isn't something two young teens can afford to do, and as you mention it would be pretty suspicious. Beyond having to deliver at hospital, your friend will need to frequent a doctor during pregnancy to ensure everything is going well for her and the baby.

Maybe you can urge your friend to tell someone else first--a school counselor or teacher, who can then help her to tell her parents. They will probably be angry (and rightly so, since having a child at 15 will probably make your friend's life very difficult) but I doubt they will actually harm her. They may lose trust in her for some time, they may even shout a lot, but if she is actually in physical danger you should let someone know.

No one can help her if she doesn't tell them, yeah? Just be there for your friend and encourage her to reach out for help. She doesn't have to do this alone.