There term Secondary infertility refers to the inability to become pregnant or the inability to carry a pregnancy to a live birth following either a previous pregnancy or previous life birth and it counts for six out of ten infertility cases. Diagnosis such as PCOS or Endometriosis - can occur at any age, so might not have been a problem in the first pregnancy. Kate Davies explains how this affects women #TTC. To find out more visit www.ovusense.com