Due date change again

So based on my LMP my due date was supposed to be March 23rd. When I went for my first scan, I was supposed to be 8 weeks 4 days and then was told I measured 7 weeks. I was on clomid so I KNEW the day I ovulated and was baffled and told them I was pretty sure that was wrong. They decided to move me to March 31st anyway though.

Fast forward to today and I go in for my Nuchal scan. I was supposed to be 12 weeks one day based on the NEW due date (which I never agreed with). Baby measures in at a solid 13 weeks and 3 days. I talked to the perinatalogist (who is actually the most qualified to make the determination on developmental stage) and he told me the ultrasound equipment at my regular office was clearly just not up to par (NT was done in their hospital suite with the nice new up to date ultrasound equipment) and I am definitely due March 23 like I thought.

Upside, I was totally on point with my dates and now further along! Downside I needed to have my NT last week not this week and now they aren’t sure if the higher NT number is because the baby is too big (and refused to get into the correct position) or if there is really a cause for concern. Luckily I took my NIPT test today which will help determine if there is a chromosomal abnormality but in the meantime, I’m super nervous with that higher number. Any prayers/good karma/ well wishes are so appreciated as me and my husband await the results!