Enlarged kidney and spot on heart

April

I went in for my 20 week ultrasound today and the Dr. found a spot on the heart and one kidney is enlarged; both soft markers for Down's Syndrome. He said these are not uncommon findings and often resolve on their own but that I should come back every few weeks for follow-up ultrasounds. I have to wait a week for bloodwork results to come back. He told me that many people with these markers are born without Down's but they can indicate a higher risk of it. I am really trying not to stress about it. Has anyone else had these results in an ultrasound?