I'm not a skinny girl either defo took a while before it was noticed by others & not just my mirror - Ya know what I seen where my baby was when I breathed in
Could you consider a private dating scan? Assuming you get the choice of that over where you are?
Thats very unfair of your hubby! This is your first baby and it comes with so much emotions, worries etc. I didn't have symptoms either really just tired, and exhausted quicker than usual - I felt the same until I started feeling movement but I also bought a doppler and hearing my babies HB made me smile & realise she was in there.
x