Scan at 20+3

Mariah • 22.05.13 💘 baby due March 5th 👶🏾🙏🏽
So I had a scan today, my baby decided too be shy and hide behind the placenta 
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I also found out that the baby might have swallowed some blood or something from the placenta, they took a blood test cause I told them I've been feeling ill so they wanted too check for any infections, they ruled out late findings of Down syndrome as mine were so low the first time 
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I know my baby is fine, the heartbeat is strong, measuring half a week behind but they aren't worried about that, the brain, lungs, kidneys, any organs are developed and not worried about that 
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Has anyone had this happen too them, I'm worried but at the same time I just feel my baby will will be okaay
               Anyone had this happen too them or going through it and everything is okaay or they feel the same 😓😞