How accurate is the ultrasound examination? The earlier the ultrasound is done, the more accurate it is at estimating the babys due date. Ultrasounds performed during the first 12 weeks of pregnancy are generally within 3 - 5 days of accuracy. The most accurate time is between 8 and 11 weeks gestation.

Can ultrasound tell exact date of delivery?

An ultrasound is actually the most accurate way to date a pregnancy because all fetuses grow at a consistent rate during the first trimester and early second. In other words, if your baby measures 9 weeks 2 days when you have your ultrasound, thats how far along you are, no matter when your last period was.

Is LMP or ultrasound more accurate for due date?

Because few women know the exact day they ovulated or conceived, an ultrasound done in the first trimester of pregnancy has been shown to the be the most accurate way to date a pregnancy. If an ultrasound date in the first trimester differs from your LMP date by seven days or more, we would go with the ultrasound.

Can a hot bath help induce labor?

There is also no evidence to support the theory that a hot bath will induce labor. While its fine to take a warm bath while youre pregnant, water that is too hot can reduce the blood flow to your baby, which can cause distress. The temperature of your bath water shouldnt be higher than 98 degrees Fahrenheit.