The ninth week marks the beginning of the third month of pregnancy, which will be the last month of the first trimester.
This week marks the end of the embryonic stage. The embryo finishes forming all its basic systems that will begin to function.
Pregnancy still goes unnoticed in women at 9 weeks. However, she does notice all the characteristic symptoms and is gradually gaining weight.
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Changes in the embryo
Week 9 of pregnancy is also a time of great changes for the baby: it almost doubles in size and its nourishment is already dependent on the placenta.
The embryo measures approximately 2.5-3 cm at nine weeks. In addition, the fetus weighs about 2-3 grams, a weight similar to that of cherries.
Among the most relevant changes in fetal development are the following:
- The hands appear with all their fingers formed.
- The legs become longer and the feet also appear with all their toes.
- The wrists appear first and then the ankles.
- The head is no longer so disproportionate and the body begins to lengthen and straighten.
- The face takes on a more normal shape: the eyes migrate to the front, the eyelids are formed, which will remain closed, and the mouth can even open.
- The organs of the digestive system begin to develop.
- The bones continue to grow and the skeleton gradually hardens.
- The embryonic tail at the end of the spine disappears.
- The genital tubercle is formed, from which the genital organs will be distinguished according to the established sex, but it is not yet possible to know this on ultrasound.
The embryo can already move in this ninth week of pregnancy, but these are involuntary movements that the woman cannot perceive.
The ninth week of pregnancy marks the end of the embryonic stage. From this moment on, the embryo is called a fetus, which continues to grow rapidly.
Symptoms in the mother
Pregnancy symptoms in week 9 remain the same as the woman had the previous week. Since this is the beginning of gestation, the mother's body is still adapting and undergoing several changes.
These symptoms may be different from one woman to another. In fact, some report a lot of discomfort in the first trimester, while others hardly notice anything at all, which is also completely normal.
Below, we will discuss the most common symptoms during this week nine:
- Increased fatigue
- Dizziness and nausea
- Pelvic pain due to uterine growth
- Breast growth
- Stomach acidity and gas
- Mood swings
- Cravings
Fatigue and dizziness in the mother are due to decreased blood pressure. From this moment on, the demand for maternal blood increases in order to nourish the embryo.
The belly is not yet noticeable because the uterus has not yet emerged from the pelvis. However, it does grow larger and the woman begins to gain weight slightly.
Pregnancy control in the ninth week
During the third month of gestation, it is necessary to visit the gynecologist to start monitoring the pregnancy and perform some diagnostic tests.
First, urine and blood tests are performed to check that all parameters are normal. The mother's weight and blood pressure, which should be monitored throughout the pregnancy, will also be noted.
The gynecologist will then perform an ultrasound to take measurements of the embryo and check for a heartbeat.
Combined first trimester screening
This test is also known as triple screening and informs about the probability of risk of the embryo having chromosomal alterations.
To perform the triple screening, the gynecologist takes into account the following parameters obtained from the maternal blood test and ultrasound:
- Pregnancy-associated placental protein: PAPP-A
- Beta-hCG hormone
- Nuchal translucency of the fetus
If you are interested in more information on this topic, we recommend you to continue reading the following post: Medical control during pregnancy.
Estimated delivery date
At the first visit to the gynecologist after the pregnancy is confirmed, the gynecologist will make an estimate of the baby's due date.
To do this, it is necessary to do an ultrasound scan to measure the embryo and to take into account when the woman's last menstrual period was before conception.
Normally, delivery takes place about 40 weeks after the date of the last menstrual period (LMP), as long as the woman has regular periods.
We invite you to read the following article for more detailed information on this topic: How Do I know When My Baby Will Arrive?
What tips to follow in week 9 of pregnancy?
As the embryo grows and the woman gains weight, back and lumbar discomfort will increase. Therefore, it is recommended that pregnant women practice sports from the beginning of pregnancy.
Walking every day is a good activity to keep fit, fight fatigue and improve circulation. In addition, moderate-intensity sports such as swimming or Pilates provide multiple benefits as well.
In terms of diet, the woman should continue with the same healthy and balanced diet of the previous weeks. Fruits and vegetables that provide folic acid and vitamin C are indispensable. It is also important to have a good calcium intake for the correct skeletal development of the fetus.
On the other hand, in order to have a good digestion and avoid gas formation, it would be important to follow the following recommendations:
- Avoid carbonated beverages.
- Avoid foods such as chickpeas, beans or lettuce that cause gas.
- Chew slowly and take the necessary time to eat.
- Do not eat abundant meals.
- Make about 5 or 6 daily intakes in small quantities.
Finally, it is very important that the woman maintains good hydration, drinking water frequently throughout the pregnancy.
FAQs from users
How many months pregnant are nine weeks?
Nine weeks of pregnancy equals 2 months and one week.
Is a triple test always done during pregnancy?
The triple test or triple screen is a universal test that is done in all women when they are pregnant, particularly around week 12 of pregnancy. It pays special attention to the risk of Down's syndrome in the fetus by combining two markers from the first trimester ultrasound with two hormones examined in pregnant women (BHCG + AFP) along with her age.
In case your OB/GYN refers you directly to invasive tests (amnio test or chorionic villus sampling) because you've been pregnant before and chromosomal abnormalities were detected in the fetus, then a triple test would be unnecessary.
What can bleeding at 9 weeks of pregnancy indicate?
If it is light bleeding, do not be alarmed. Some women may experience small amounts of spotting throughout their pregnancy. In the case of heavier bleeding, it is advisable to see a doctor as soon as possible, as it could be a threatened miscarriage.
What is a twin pregnancy like at 9 weeks?
In the 9-week ultrasound, it is possible to establish the type of twin pregnancy, that is, the number of placentas and sacs present.
On the other hand, weight gain in a woman pregnant with twins will be more noticeable than in a singleton pregnancy. Therefore, the control of height and weight must be done more carefully, in addition to following all medical recommendations to avoid possible risks.
Recommended readings
If you are interested in continuing reading about the weeks of pregnancy, we recommend you to visit the following article: The tenth week of pregnancy.
Maintaining good health is essential for the proper development of pregnancy. Therefore, pregnant women should follow the advice discussed in the following post: Health in pregnancy.
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References
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Consejería de Salud de la Junta de Andalucía (2002). Proceso Asistencial Integrado: Embarazo, Parto y Puerperio. Consejería de Salud, Junta de Andalucía. Sevilla (View)
Cunningham F, MacDonald P, Gant N et al. (1996). Adaptación maternal al embarazo. Masson SA. Cunningham F, MacDonald P, Gant N, et al. 4ª ed, Barcelona; pp. 201-237
Duyff, R.L. (2002). American Dietetic Association Complete Food and Nutrition Guide (2nd Ed.). Hoboken, New Jersey: John Wiley & Sons, Inc.
Eugene S, Bonapace MD, Robert S, Fisher MD. (1998). Constipation and diarrhea in pregnancy. Gastroenterol Clin North Am; 27: 197- 211 (View)
Gary F, Mc Donald P. (1996). Adaptación materna al embarazo. En: Gary F, MacDonald P, Grant N Lereso K, Gilstrap L, editores. Williams. Obstetricia (4.a ed.). Barcelona: Masson.
González Merlo J. (1992). Modificaciones fisiológicas producidas en el organismo materno por el embarazo. En: Williams. Obstetricia (4.a ed.). Barcelona: Masón (View)
Grupos de trabajo de la Guía de Embarazo y Parto, Guía de Salud Oral, y Guía de Lactancia Materna. Consejería de Sanidad, Dirección General de Salud Pública y Servicio de Salud del Principado de Asturias. Octubre de 2015.
March of Dimes, Pregnancy & Newborn Health Education Center. Exercise during Pregnancy. Retrieved March 11, 2008
National Health Service (NHS) (UK) (2009). The Pregnancy Book. Your complete guide to: A healthy pregnancy, Labour and childbirth, The first weeks with your new baby. Crown copyright 2009. Produced by COI for the Department of Health.
Obstetricia 4ª edición. J. González Merlo. Ed. Masson. Barcelona, 2003
Ramírez García O, Martín Martínez A, García Hernández JA. (2003). Duración del embarazo. Modificaciones de los órganos genitales y de las mamas. Molestias comunes del embarazo normal. Panamericana Ed. Tratado de Ginecología, Obstetricia y Medicina de la Reproducción. Cabero Roura L, Madrid.
The American College of Obstetricians and Gynecologists. (2005). Your Pregnancy and Birth (4th ed.). Washington, DC: Meredith Books.
The American Dietetic Association. (2008) Position of the American Dietetic Association: Nutrition and Lifestyle for a Healthy Pregnancy Outcome. Journal of the American Dietetic Association. 108:553-561.
U.S. Food and Drug Administration (FDA). Food Safety for Moms-To-Be. Retrieved April 09, 2010
FAQs from users: 'How many months pregnant are nine weeks?', 'Is a triple test always done during pregnancy?', 'What can bleeding at 9 weeks of pregnancy indicate?' and 'What is a twin pregnancy like at 9 weeks?'.
Authors and contributors
More information about Cristina Algarra Goosman
Hello, I am 9 weeks pregnant and two days ago I notice that there is some blood when I clean myself, I don’t know if it is normal or I should be worried. Thank you
Hello Sarah,
Bleeding during pregnancy can have different reasons, it is important to establish different characteristics such as the amount of blood, the duration of the bleeding, its color and the week of gestation.
If the amount of blood is greater than a spot or it lasts over time, I recommend that you go to your doctor so that he can examine you and establish if everything is fine or if there is a problem that needs a solution.
I recommend that you read the following article: Is bleeding in pregnancy normal? What are the causes?
I hope I’ve helped,
All the best
Hi, I’m 9 weeks pregnant and I’m having a hard time getting up to do sports. I have a lot of fatigue and I do not feel well, I mean I know it’s important but I find it complicated.
Hello Alexis,
The first weeks of pregnancy are usually accompanied by fatigue, tiredness, and other symptoms. To reduce these symptoms, doctors recommend an active lifestyle and a balanced diet as well as drinking plenty of water.
It is normal to feel as you have described but it is important to try to break the vicious circle and go for a walk or do some other light sport that can reduce the symptoms described.
I hope I have helped you and that your pregnancy is going well.