Early ultrasound accuracy dating conception


31-Mar-2020 00:26

After this time period, it becomes less accurate, varying up to 1 week if the ultrasound is performed late in the…

Yes, During an ultra sound they measure the length of the baby, the limbs if visible, head circumference etc.. An ultrasound is accurate to within a couple of days if done at 8 weeks…

I am asking because I had protected sex with someone in the early morning of Jan 19th (3 forms of BC), and then unprotected sex with someone else all of feb.

I have been having contractions so it makes me nervous.Generally, pregnancy is measured from the date of your last period.