EDD 16 days later than first estimated (acc to menstrual cycle)

[Mildez]

Have you had a scan before this one? That would be more accurate to compare the difference in dates.

By memory at 19weeks if you get an EDD from that the area for effort is said to be + or - 3weeks. So although you may indeed be 19weeks (or 17weeks since conception) the baby can be growing at a different rate so be smaller or larger then the average 19week baby. It makes sense when you think we are not all going to have an average 3.3-3.4kg baby. The bigger babies ted to measure a week plus ahead and the smaller ones less.

With my 2nd my 18week scan showed I was 21+ weeks. The EDD was 30th April although my 8week scan had given me an EDD of the 15th of May. She arrived at 36weeks weighing almost 8lb but clearly early (due to vernix, poor muscle tone and too tired to feed).

[tanyaya]

hi ladies

thanks for all your replies and for shedding light on the situation - after a night's sleep, I feel much more energetic today and less like the wind has been taken out of my sails.

The EDD given at the 12 week scan was November 9, which is what I had mentally prepared for (I know, I need to give up this illusion of control, especially given that the baby comes when baby is ready). So when I yesterday heard that the baby didn't look so big (but was in proportion, so the lady doing the ultrasound wasn't "worried") and was measuring at 16w5d, then I was just flabbergasted.

Having said that, I was apparently having a contraction and had a very full bladder (as requested) which could have cramped up baby and given unrepresentative measurements.

We have been invited back to do another ultrasound in 2 weeks, with the woman who did our 1st scan at 12 weeks. So we will be comparing apples with apples so to speak.

Thanks again, and have a great day :-)