Measuring behind on Scan

[Lottie231]

Hi everyone.

Anxious and looking for similar stories. 😪

My LMP was 24th Feb but I have inconsistent and usually long cycles, around 35-40 days. I went for a private scan on 21st April and measured 6 weeks 4 days with heartbeat.

Today 6th May (15 days later) I went for another private scan as I’m really anxious due to previous losses. I am now measuring 8 weeks and 3 days with a heartbeat. Based on 1st scan I expected to be further along.. more like 8 weeks 5 days, so now I’m all worried the baby is falling behind. Has anyone had this?

Also, my nhs scan will be in around 2 weeks because they base it off my LMP. So I’ll only be 10 weeks 3 days, will this be too early?

I really wouldn't worry about the discrepancy, the measurements are so tiny, it is only an estimate. Everyone I know had their 'due date' changed at their NHS scan. It might be too early at the NHS scan as it's meant to be between 11-14 weeks but they will do it and probably ask you to come back for another one. The heartbeat being there is a very good sign, once that is sign, the miscarriage risk does drop a lot.

The baby is so small at this stage, and there are so many variables, being absolutly tiny, different machine, different sonographer…. There’s a reason they don’t give you your official due date based off these scans. I wouldn’t worry at all about 2 days difference. The dating scan is usually 10-14 weeks so it should be fine

Yes! Very recently (I had a similar thread where I was panicking). I was measuring 5 behind at scans at 7, 9 and 11 weeks. Then I was bang on at 12 week scan. So early millimetres make a difference and the scans have a 5 day margin of error, so you really have nothing to worry about.