Measuring a week behind at anomaly scan

[L00k4m3x]

I had my 20 week scan today (19+2) and saw on the screen when the sonographer did measurements that baby measured 18+2. She didn’t mention it but I did ask at the end and she said it was ‘still within the parameters of being normal’ of course though I still worry.

Has anybody had this before? This is my first girl after two boys, both born quite chunky and I had very big bumps with both whereas I barely feel I look that pregnant this time around, bump is quite small.

I noticed on the screen during my 20 week scan that some of the measurements were almost a week behind where I should be. I didn't ask about it as I know those are just averages and babies grow at different rates so wasn't really worried. I had a growth scan at 28 weeks and baby was measuring 53rd centile so all nice and average.

If the sonographer said everything is within normal ranges I wouldn't worry!