Question on a few things

I got my 21 week ultrasound I got told by the dr that's there that my baby had two factors of possibly haveing Down syndrome, factor number one was that the kidneys was dilated and factor two was that the baby had a light spot in the heart  I'm not sure exactly what to think , my bloodwork came back and said I have 1 in 7,000 chance of the baby having Down syndrome, other then getting that news my baby has been very active and has been kicking and moving around a lot more at night then the day I want to believe everything's ok with the baby and the baby won't have Down syndrome, either way if the baby does have Down syndrome I will keep it nothing will change it and I've heard haveing a child with Down syndrome or any special needs child isn't easy to deal with any suggestions on what I should do or any one here that has a child or know a child with Down syndrome help me try and understand it better and how hard it'll be