14th week: The baby is constantly turning
- Weeks and days
- 13+0 to 13+6
- Month
- 4
- Trimester
- 2
This week, the fetus grows from about 74 to 87 millimeters. It now turns and twists particularly often. The nuchal translucency scan is still possible until 13+6, but not after that.
Week 14 of 40
Calculate your weekHow big is the fetus?
74 to 87 mm
By the end of the week, the fetus is about the size of an orange. According to ultrasound estimates, it then weighs around 90 grams.
Crown-rump length according to the UNSW Embryology table; the NHS gives the same values. Weight according to the WHO growth charts. A medium-sized orange measures 77 to 88 mm.
This week
Your baby
- Between the 14th and 16th week of pregnancy, the fetus changes position most often.
- Inside, the ovaries or testes are fully formed; on the outside, the genitals are still taking shape.
- By the end of the week, the heart beats on average about 156 times per minute.
Your body
- The hCG levels chart gives no value for the 14th week of pregnancy; the level continues to fall. More in the hCG levels chart.
- By the end of this week, nausea is over for about half of pregnant women.
- From the 2nd trimester, pregnant women of normal weight gain on average about 0.4 kg per week.
What matters now
- Last week for first-trimester screening: measurements are taken until 13+6.
- In Austria, the time window opens for the general medical examination and the first midwife consultation in the Parent-Child Pass (Eltern-Kind-Pass), until the 20th week of pregnancy at the latest.
- Swollen, bleeding gums are common during pregnancy. If they bother you, have a dentist take a look.
Get checked right away: heavy bleeding, severe or persistent abdominal pain, fever, pain when urinating, or vomiting where you cannot keep anything down.
On ultrasound
- 13+0
Anatomy: Many details can be assessed particularly well around this time.
- 13+0
Sex was correctly identified in studies at 13 completed weeks in 79 to 100 out of 100 cases.
- 13+6
Nuchal translucency can be measured up to this day, but not after that.
In Germany, under the prevailing interpretation of the Genetic Diagnostics Act (Gendiagnostikgesetz), the sex may only be disclosed from 14+0, that is, from next week.
Frequently asked questions about the 14th week of pregnancy
Can you see the sex in the 14th week of pregnancy?
Usually, yes. In studies, accuracy at 13 completed weeks was between 79 and 100 in 100. In Germany, under the prevailing interpretation, you may only be told from 14+0.
Can you feel the baby in the 14th week of pregnancy?
Usually not yet. In one study, women who already had a child felt the first movements at 14 completed weeks at the earliest, and first-time mothers at 15 weeks at the earliest.
What is the risk of miscarriage in the 14th week of pregnancy?
In an analysis of several studies, from about the 14th week, it was less than 10 in 1,000 pregnant women per week.
Which month is the 14th week of pregnancy?
The 4th month of pregnancy, in the 2nd trimester. Figures such as 13+2 weeks also belong to the 14th week of pregnancy.
Sources
- Fetal Development, UNSW Embryology
- 14 weeks pregnant, NHS
- Kiserud T et al.: The World Health Organization Fetal Growth Charts, PLoS Med 2017;14:e1002220
- de Vries JI et al.: The emergence of fetal behaviour, Early Hum Dev 1982;7:301
- 13 weeks pregnant, NHS
- Bilardo CM et al.: ISUOG Practice Guidelines (updated), performance of 11-14-week ultrasound scan, Ultrasound Obstet Gynecol 2023;61:127
- Beta-HCG, test directory with the table from the Roche Elecsys HCG+β package insert, Ulm University Hospital (Universitätsklinikum Ulm), as of 8 July 2020
- Lacroix R et al.: Nausea and vomiting during pregnancy, a prospective study, Am J Obstet Gynecol 2000;182:931
- Guidelines for weight gain during pregnancy, based on IOM 2009, Merck Manual Professional
- S2e guideline on first-trimester diagnostics and therapy at 11 to 13+6 weeks of pregnancy, AWMF 085-002, valid until 31 December 2028
- Austrian ordinance on the Parent-Child Pass examinations (Eltern-Kind-Pass-Untersuchungsverordnung), Federal Law Gazette BGBl. II No. 241/2026, Republic of Austria
- Whitlow BJ et al.: The sonographic identification of fetal gender from 11 to 14 weeks of gestation, Ultrasound Obstet Gynecol 1999;13:301
- Efrat Z et al.: First-trimester determination of fetal gender by ultrasound, Ultrasound Obstet Gynecol 1999;13:305
- Genetic Diagnostics Act (Gendiagnostikgesetz), § 15, Federal Ministry of Justice
- Svensson: Prenatal diagnostics (Pränataldiagnostik), Duncker & Humblot 2023
- O'Dowd MJ, O'Dowd TM: Quickening, a re-evaluation, Br J Obstet Gynaecol 1985;92:1037
- Ammon Avalos L et al.: A systematic review to calculate background miscarriage rates using life table analysis, Birth Defects Res A 2012;94:417