STOP AND BREATH SPARKS sorry for shouting 
I had to go to my mw for my booking in, so I don't know about home ones but I think there are blood tests they still need to do (sti's, hiv, blood group etc) my mw didn't have a poke about on my belly (also a bit furry, has been since pg with toddly boo
) as baby is still tucked away nicely in your pelvis and there is not much for them to feel, but if she does, I'm sure the sofa will suffice.
I am sure mummy sparks is just trying to prepare you, but you could just as easily have an altogether different pregnancy from hers, and mummy sparks isn't a brooker, so doesn't know the rules about textbook pregnancies and sneeze births :)
Also, your mw will only be looking at you, she doesn't care if your house has that 'lived in look' she cares that you and twinkle are healthy and if you think it is bad now, you wait till twinkle is here
now, sit down, have a decaf
and some hula hoops, relax!