I'm pleased you have made a decision your happy with op.
To reinforce you decision u would like to add my story.
I didn't want to go for a scan at all and eventually went at 6.5 months (that is not a typo) dd was dx with spina bifida and we were painted a bleak picture of birth, newborn and life. I was told my precious baby world be born with her spinal cord exposed and dangling out of a hole in her back, would be rushed off for emergency surgery within hours of birth, never walk or be continent and had a 75% chance if developing hydrocephalus in utero and would be miss sharpen and brain damaged.
After having loved being pregnant, I became terrified. I spent the rest of my pregnancy being stressed beyond belief. Our language has no words for what I felt.
After a horrendous 3 day labour ending in a section ( how could I push out a baby who was going to have to face all that!)
As soon as she was born
We discovered that her spina bifida is not open, she spent the first 24 of life snuggled up to me (as opposed to medical grade cling film!)
At 16 mo we know she has some muscular Un development and is not unaffected by her spina bifida. She is however walking with aid, mentally normal and as continent as you would expect.
It's all very well saying you would rather know to prepare yourself but from my own experience I would rather of had my precious baby in my arms and been able to see that she was ok really, tell her I'd low her no matter what. Than spend 3 months feeling like my body had betrayed this baby and dreading her having to come out.
There is plenty of time to learn to adapt to your new babies particular needs when they are here. What do you really gain from a bunch of maybes?