Dating sonogram

First prenatal blood tests After your scan you’ll have blood taken.

This blood test looks for: • Down syndrome: A blood test is performed in combination with the first ultrasound to determine the likelihood your baby will have Down’s Syndrome.

For most mums-to-be, the first scan will be a dating scan at between 10 weeks and 13 weeks plus six days of pregnancy.

However, the timing of your first scan will also depend on how your pregnancy is going, and where you live.

Your prenatal visits will probably be scheduled every month until 32 to 34 weeks.

After that, they will be every two weeks until 36 weeks, and then weekly until delivery.

What about the 20-week ultrasound and all those other tests that moms-to-be have to take — amnio, glucose challenge, routine bloodwork? You might also be sent for one to check your conception date and to make sure the pregnancy is progressing well.

(Note: Your caregiver might require you take additional tests. Talk to your caregiver if you have questions or concerns.) Tests in first trimester What to expect Your first ultrasound(s), blood and urine tests When Weeks 11 to 13 (*dating ultrasound is done sooner) Dating ultrasound Not everyone gets this scan but some caregivers offer a dating ultrasound if you’ve had bleeding in the first few weeks or had problems in prior pregnancies (miscarriages, etc.).

Having a scan in the first few months of pregnancy can be a thrilling experience.

It's amazing to see the little blob with a heartbeat that will soon become your baby.

This ultrasound examination is usually done vaginally around the eighth week of pregnancy.

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