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.

Whats the most common week to miscarry?

Most miscarriages happen in the first trimester before the 12th week of pregnancy. Miscarriage in the second trimester (between 13 and 19 weeks) happens in 1 to 5 in 100 (1 to 5 percent) pregnancies. As many as half of all pregnancies may end in miscarriage.

Can I have a baby bump at 9 weeks?

Although you might only be showing a bit of a baby bump by week 9 of pregnancy - or in some cases, no bump at all yet -, you can probably feel your lower belly getting firmer. This is your uterus, which is expanding to fit your growing baby and will soon become a larger baby bump.