Down Syndrome

I had 10 children before I had Ruby and one of my biggest fears, especially after I turned 35 ,was having a child with Down Syndrome.During my pregnancy with Ruby I felt that she had Down Syndrome.On several occasions when I went to my O.B. he would mention that the baby's heart rate was a little slow(but it was nothing to worry about) and her heart beat sounded different to me,I noticed it didn't sound like galloping horses like the other kids had.My O.B. would mention how small my tummy looked compared to my other pregnancy's.(Ruby was much smaller than my other children except for her oldest sister who was born one month premature).
One evening my husband and I were watching a documentary on PBS about a man with DS ( it was called "Lessons from John") and I kept feeling like my baby had DS .
We also had an incident a few weeks before Ruby was due where my oldest daughter made fun of a man that worked at the grocery store, because his pants were too short and I got upset with her and told her that this man had a mental disability.She felt horrible and I told her to never make fun of anyone.I felt then that something was wrong with my baby but didn't mention it to anyone.
When the nurse in the delivery room told me they thought Ruby had DS, I told her I wasn't totally surprised because I had been thinking my baby had that.
I didn't dwell on it the whole pregnancy I just had certain moments that I thought it.