The changes a woman experiences during that week can be deemed as positive, as she is entering on a phase free of morning sickness and vomiting, although some mums will take more time to get rid of these discomforts, most likely in the third trimestre or even later.
The different sections of this article have been assembled into the following table of contents.
You've got more blood flowing all over your body; that is the reason why you occasionally will not be able to breathe normally. Don't be surprised if you also feel dizzy from time to time.
The foetus will grow and finish the constitution of its organs and body parts. During the latter stages of the third month, the arteries and muscles of the baby will be formed.
Blood has started to flow over the umbilical cord, between the foetus and the membranes attached to the uterine wall. Fetal nourishment will start to rely on these membranes and the placenta begins to work.
The placenta has now acquired its definitive form, but it will keep growing and thickening, although it is already delimited. It will responsible of producing some hormones, amongst them estrogens and progesterone, the latter previously synthetised by the luteal body.
The foetus is usually 50 cm long and weighs nearly 7 grams.
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