A low ovarian reserve is usually the cause of female infertility. In assisted reproduction, ovarian failure is an important determining factor for the success of the treatment, and normally leads to obtaining a smaller number of ovules and the need for several cycles of stimulation.
Gone are the old examples in which the only functional family model was the one formed by a mum and a dad. Today, we all understand that many families come in many different forms, with each being valid, as long as there is love and affection.
