Numerous studies have been done in the past trying to determine the relationship between infertility and some types of cancer in women. Some of these suggest that the fertility medicines used during treatment are responsible for an increased risk in breast and ovarian cancer. Other studies contradict these findings and say that the drugs themselves are not linked to an increased risk of cancer.

A study done previously by a Danish recurrent miscarriage clinic observed patients referred from 1986 to 1999 and found that firstborn boys opposed to firstborn girls are far more frequent in mothers with secondary recurrent miscarriage. Also, a firstborn boy was correlated to a less favorable pregnancy potential. In the 14-year follow-up done by the clinic, mothers with firstborn sons had fewer subsequent live births than mothers with firstborn daughters.

Approximately 1% of women have what is known as recurrent miscarriage. This means that they have had at least 3 consecutive miscarriages. Of that 1%, approximately 1/3 suffers from secondary recurrent miscarriage, meaning that they have had a child prior to having repeated failed pregnancies.

With the changing environment and the continual development of new products with new materials, it is no surprise that people are more worried about their exposure to chemicals than ever. Chemicals are in everything we use. Some of these chemicals can have certain adverse effects on infertility, miscarriage or even the success of treatments such as IVF that have yet to be determined.