Aww murphy don't worry. I'm also 28yrs old and currently have no children, I was plannign to come off my pill to start a family at the start of this year but that didn't go quite to plan. So as you can imagine I'm now wondering how this is all going to work having kids but at the end of the day the CIN couldn't stay inside me could it. I just hope I don't have problems with getting pregnant/carrying a baby.
But like I say one step at a time...can't get pregnant till I'm sorted can I?! Don't be scared.... you actually went for your smear and didn't just keep putting it off so thats a start.
My friends have all been through the mill with CIN, VIN, IVF and ovaries removed, ectopic pregnancies you name it, we are a right bunch between us!
What is it you don't understand? I am no expert but am more than happy to try and explain :)