Pregnancy dates & scan

[Mamaof3expecting2024]

So I had a scan 2 weeks ago and I was 7 weeks 4 days, I had another today and I was 9 weeks 2 days, I should be 9 weeks 4 days. Should I worry that the size isn't on track?

No, baby is so so tiny dating at this stage is inaccurate. Baby is showing growth consistent with the time period so don't worry about a couple of days.

Nope, it's only 2 days out, it's not an exact science nor are the sonographers measurements 100% accurate. You may go back at 12 weeks and baby has caught up and is measuring bigger than you expect. The progression sounds about right so that and a visible heartbeat is more than enough to show good progression for baby x

No I really wouldn’t worry especially with it only being 2 days out. As others have said baby is so small that it’s hard to get a measurement sometimes and different sonographers can measure differently. They’re literally measuring mm which if you think about it is super tiny and so easy to get wrong.
I’m currently 13 weeks pregnant and had multiple scans in the first tri due to bleeding, and my measurements were really out at one point I was really concerned, but I had my 12 week scan last week and baby is now measuring perfectly with my ovulation dates.

First scan measuring 6+6 (2 days ahead of what I thought I was)
Second scan a full week later measuring 7+1 (so looked like only 2 days growth in 7 days)
Third scan measuring 8+3 (this was a whole week later too so I’d caught up by 2 days)
Fourth scan 10+1 (thought I should be just 10
weeks so caught up another day since 7 week scan)
12 week scan measuring 12+5 which matched up to my 10 week scan and the date I believe I ovulated 😊x