Pregnancy: what happens in the third month?

mom side

When does the 3rd month of pregnancy begin?

The third month begins ninth week of pregnancy (Where from eleventh week of amenorrhea). The tummy rounds out, the tiredness subsides and suddenly the baby-to-be finally becomes concrete. It’s time to make an appointment Ultrasound in the first trimester and spread the good news around you!

Why wait 3 months to announce your pregnancy?

Although there are no rules for announcing pregnancy, the risk of miscarriage Before the third month – 10 to 15% of pregnancies – it is important that couples generally prefer to remain silent during this time. A sometimes frustrating moment for expectant parents who remain silent and contain their joy in shouting the good news from the rooftops!

Which investigations are to be carried out?

Ultrasound in the first trimester

An appointment eagerly awaited by future parents, Ultrasound in the first trimester ensures that the fetus develops well. “This ultrasound offers the possibility of detecting anomalies, checking how many fetuses are present and, above all, which ones Measure the neckone of the essential elements in a performance from trisomy 21 recalls Marianne Benoit Truong Canh, sonography midwife.

The first ultrasound checks:

  • the cranio-caudal length (LCC), which is the length from the head to the buttocks of the fetus, and the diameter of its skull (biparietal diameter). These values ​​are used to date the onset of pregnancy,
  • the number of fetuses : in case of a twin or multiple pregnancy,
  • the Measurement of nuchal translucency : This space behind the neck of the fetus must not exceed 3 mm. Above the risk of a chromosomal abnormality (trisomy 21) or malformation is greater.
  • the fetal vitality : Even if the future mother is not yet aware of them, the movements of the fetus at this stage of pregnancy are numerous. “He jumps like on a trampoline, stretches, curls up, waves his arms and legs, then falls asleep and becomes still again, but never for very long because these different phases follow each other quickly, the authors of The Big Book explain to me Pregnancy. His heart is beating very fast (160 or 170 beats per minute) and we can already hear it thanks to echo doppler.”

Trisomy 21 screening

Genetic abnormality feared since 2009 trisomy 21 – also called Down syndrom – will be screened in the third month of pregnancy. This combines a Ultrasonic (performed between 11 and 13 weeks of amenorrhea and 6 days) and a blood test (to be carried out between 8 and 14 weeks of amenorrhea). The combination of these two examinations and the maternal age allow an assessment of the risk of a chromosomal abnormality. “If the risk is between 1/51 and 1/1000, we recommend a blood test to examine fetal DNA in maternal blood. If this test is positive, a amniocentesis to study the fetal karyotype, says Bernard Hédon, professor of gynaecology, obstetrics and reproductive medicine at the Montpellier-Nîmes School of Medicine. For women with a risk greater than 1/50, it is recommended that the couple choose between a DNA analysis and a karyotype by amniocentesis or trophoblastic biopsy. This examination is paid for by Social Security. If the karyotype is normal, this confirms that the child does not have a trisomy. This does not mean that he does not have other abnormalities that cannot be seen by examining the chromosomes or by ultrasound. Finally, if the risk is less than 1/1,000 (e.g. 1/2,000 or 1/3,000) the doctor will risk of miscarriage in connection with amniocentesisbut without having the certainty of the normality of the child”.

What is an amniocentesis?

amniocentesis involves removing a small amount of the amniotic fluid that surrounds the fetus with a very fine needle through the expectant mother’s abdomen. Although impressive, rest assured that the examination, performed under ultrasound guidance, is no more painful than a blood test! The sample then makes it possible to culture the fetal cells and examine their chromosomes to ensure there is no abnormality. The examination-related risk of miscarriage is 0.5 to 1%.

Screening for toxoplasmosis

At the beginning of your pregnancy, the doctor ordered a blood test to check whether you are immune or not toxoplasmosis. If you are not, you will need to be screened every month. In fact, if this parasitic disease is not dangerous for the future mother, then she is terrible for the fetus where irreversible damage can occur. The third month is exactly when toxoplasmosis can have the greatest impact on your pregnancy. Therefore, if you are not immune, it is important to be and be vigilant not consume :

  • from delicatessen (Avoid rillettes, pies and undercooked foie gras),
  • from raw meat and seafood or undercooked
  • from Cheese made from raw milk (choose pasteurized cheese),
  • Fruits and vegetables that are not peeled or washed (raspberries or blackberries from the garden).

It is also recommended to avoid contact with cats and not to change the litter yourself, to always wear gloves when gardening and of course to wash your hands regularly, especially before preparing meals.

It’s time to…

  • make yours declaration of pregnancy if this has not already been done by your gynecologist or doctor. The declaration must usually be made before the 15th week of amenorrhea. This entitles you to maternity insurance benefits – payment for the aftercare of your pregnancy, the eight antenatal sessions, hospital expenses during childbirth, and all medical, pharmaceutical, laboratory tests and hospital expenses related or unrelated to the pregnancy – as well as health insurance and certain family benefits.
  • Go to the maternity ward of your choice to sign in! They take the opportunity to arrange consultation appointments for the 8th and 9th month.
  • announce your pregnancy to your relatives and to inform your employer.
  • Start thinking about child care. And yes, yes!

baby side

The beginning of the fetal period

For babies, the third month marks the beginning fetal period. This means that the organs created during the embryonic period grow and differentiate. The baby-to-be then makes one dozen centimeters and weighs about 65 grams. “That’s when you really see the entire fetus,” says Marianne Benoit Truong Canh, ultrasound midwife. He moves a lot and jumps in all directions. You can also hear the beating heart. It’s very moving for the parents-to-be.” Gradually, his face changes, his skeleton ossifies, his limbs lengthen and his muscles develop, allowing him to move his arms and legs.

Did you know already ?

Would you like little bubbles in your stomach? it’s just your baby starts to move !

Leave a Comment