As mom-to-be, you might notice your hair and nails are growing faster. That is a consequence of the hormonal change you are undergoing. Many women say the condition of their hair and nails is better than ever, as the hair is brighter and the nails get stronger.
The different sections of this article have been assembled into the following table of contents.
Changes in the mother
Your skin is also changing: now it looks more radiant and luminous due to physiological reasons. That is the reason why many people compliment your pregnant look.
You’d better enjoy the moment and feel happy. The happier you are, the happier you baby is.
Changes in the fetus
In the 12th week, the face has a human aspect and the chin has grown. The ears still are lower than they should be and the nails start to grow.
The genitalia has either male of female features, depending on the gender of the unborn, although they are not fully developed and discerning the gender is still kind of difficult.
If the embryo has two X chromosomes (XX), it will be a female, and therefore the clitoris may be already formed, both the labia majora and minora. A XY embryo corresponds to a male. In such case, the scrotum and the glans of his penis are formed. We have to bear in mind that we talk about genitalia formation, not development, that is why it is so hard to tell them apart in an ultrasound scan.
At the end of this week, the fetus is 85 mm long and weights 15-20 gr.
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