Ultrasound for dating pregnancy

As it turns out my son was born 2 weeks early at 7lbs 12oz totally healthy! He is really smart and funny unfortunately though he is showing signs of dyslexia, however minor they may be I can't help but wonder if all those scans affected his mental development.

Not to mention my original questioning of the procedure.

It's used to: While most practitioners wait until at least 6 weeks to perform the first ultrasound, a gestational sac can be seen as early as 4 1/2 weeks after your last period; a heartbeat can be detected as early as 5 to 6 weeks (though it might not be detected that early in all cases).

Midway through your pregnancy, usually between week 18 and week 22, a detailed anatomy scan called a level 2 ultrasound is performed.

In the first trimester of pregnancy (weeks one to 12), ultrasounds may be done to: During an ultrasound earlier in the pregnancy, you may need to have a full bladder for the technician to get a clear image of the fetus and your reproductive organs.

You should drink two to three eight-ounce glasses of water one hour before your scheduled ultrasound.

Your provider uses ultrasound to do several things, including: Yes.

Most women get an ultrasound in their second trimester at 16 to 20 weeks of pregnancy.

Some also get a first-trimester ultrasound (also called an early ultrasound) before 14 weeks of pregnancy.

An ultrasound, also called a sonogram, can help monitor normal fetal development and screen for any potential problems.

Along with a standard ultrasound, there are a number of more advanced ultrasounds — including a 3-D ultrasound, a 4-D ultrasound, and a fetal echocardiography, which is an ultrasound that looks in detail at the fetus’ heart.