Today, the social age and the biological age to have a baby are very different in most cases.
The fertile years of a woman correspond to the age group of 16 to 27. From 30 to 35, the woman is still considered fertile, but she experiences a slight decrease. However, changes in our society, as well as the integration of women into the labor market have led to a delay in motherhood that, in many cases, extents until age 40.
The main inconvenient of this is that pregnancy chances diminish dramatically by age 40, whilst the number of risk that may appear during pregnancy increase significantly.