Excited, but nervous...

Today is my 20 week appointment and I’m excited to see my little one, but I’m terrified that something might not look right. I haven’t had the healthiest diet, neither have I exercised. Also, mental retardation runs in my family and I’m scared that we will be able to see something wrong with the development of her brain. Please pray for me. I know God had the ultimate word and that His plans are perfect.