I saw my doctor and she asked various questions. one that stood out was did he have a lot of hiccups? and I said yes she said she feels upset that she never told me to keep an eye on that. that as harmless as it seems it's because there might be a shortage of air . I did have it a lot which I thought it was normal , but it's a sign that there's something wrong with the cord. in my case it was a true knot. So ladies please be aware. I did not know this. even though I had two previous pregnancies. God bless you all ♡