Amy the fact that you are aware of all the possibilities is great .On the other hand it can be a curse because you are overthinking the possibilities.
The simple answer is there is no answer.

Until the minute you sit in the Doctors office and get the results and look at their faces and hear their words no one can tell you what the outcome will be.

I can only tell you that in my experience limited though it is ,they are usually pretty up front, and will tell you like it is.What you do with that information will be up to your Mum and you.You may have choices or you may not,but come back and tell us how it goes and i am sure once you know for definate you will get all the help and advice you could possibly want.

liz