My scan brought me forward by 9 days, and I had a stressful time putting off induction!
If I'd insisted we worked to my dates I would have given birth at 40+6 lmp with no worries instead of stressed out at 42+1 scan.
If there's a next time I will refuse the kind offer of a 'dating' scan. It's not needed, imho. Never had one with my ds 15 years ago, just the anomoly scan at 19 weeks.
I know of women fudging their dates a little and refusing 'dating' scans to get away from the pressure they don't need. After all they tend to know their own menstrual cycle, sexual habits and their body a lot better than a machine and an operator who was not there at time of conception.
The benefit of a dating scan is when women don't know their lmp, have not had a period (after mc etc), are extremely irregular but I don't think it's worth it for women who are ttc and/or are sure of their cycle. So therefore shouldn't be routine or compulsory. It's just the first instance where we are being given the idea that we don't know what to do, our bodies don't work, we cannot be trusted. It's insipid and is part of the reason why childbirth is the state it is today.
A woman deserves to feel trusted and to have faith that she can grow and birth a baby. She deserves to have mw who support and care for her so that she can birth her baby. But that takes us on to a whole other political issue!! I'm not going there just now, sorry >
It's just that if she doesn't have this faith, then she's already at a disadvantage. I should know....