By Neus Ferrando Gilabert BSc, MSc (embryologist).
Last Update: 09/18/2014

During this week it is normal you could feel tired or miserable, most of all if you have trouble sleeping.

The different sections of this article have been assembled into the following table of contents.

Changes in the pregnant woman

In the 30th week of pregnancy you will notice your hips and pelvis wider: your body is adapting to leave more room for the baby to keep on growing. When you’ll be sitting, his kicks around your diaphragm and ribs could bother you.

It will be also possible that you feel clumsy, heavier (normally you should weight between 10 and 15 kg more) and with a bigger size, and for this reason it is sometimes difficult to estimate distances. Moreover, it should be added the loss of balance that this entails, and the tiredness due to pregnancy.

Changes in the fetus

The stage of your baby after 30 weeks is really advanced: his brain continues developing, smell neurons are formed, for this reason your baby will already start noticing the strong odors you meet on your way.

He can recognize and remember your voice, and makes rhythmical breathing movements.

Probably the fetus feels Braxton Hicks contractions, even if you don’t notice them: a demonstration of this could be his stronger movements when you are in a position he dislikes.

The most common fetus dimensions at this stage of pregnancy are a length of around 40 centimeters and a weight of 1,413 grams on average. If his weight is between 1,005 and 2,000 grams you shouldn’t worry, because it is within the normal range of values.

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Authors and contributors

 Neus Ferrando Gilabert
BSc, MSc
Embryologist
Bachelor's Degree in Biology from the University of Valencia (UV). Postgraduate Course in Biotechnology of Human Assisted Reproduction from the Miguel Hernández University of Elche (UMH). Experience managing Embryology and Andrology Labs at Centro Médico Manzanera (Logroño, Spain). More information
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