Believe it or not, but a woman's ability to have a healthy pregnancy starts with the quality of sperm contributed by her partner, recent research has revealed.

Research conducted by a team of doctors in Australia has proved that the sperm actually prepares the female body for nurturing the fetus and in some cases runs the risk of being rejected by the woman if not entirely compatible with her body mechanics. 

Of course, there is also a good chance that some of the sperm fail to communicate with the female reproductive system and can cause the partner to seem infertile, says University of Adelaide professor Sarah Robertson. 

The research has proved that couple not having babies might not necessarily be having infertility problems. If a man's semen test is normal, it is automatically assumed that the problem lies with the woman. Our research has proved that it could be a communication gap between two fertility systems, says Professor Robertson. 

The researchers have discovered that the sperm just doesn't fertilize an egg as there is a signaling mechanism whereby molecules activate immune changes in women that eventually allows the body to accept a foreign substance. 

Professor Robertson, who is a fertility specialist and leading a research project that examines the actions of the sperm in the cervix after sexual intercourse,  says the male body provides data that heightens the chances of conception and progression to pregnancy. 

The research show that the female body on the other hand has a quality control mechanism that needs to accept compatibility with the sperm and also does an assessment on whether the conditions are as they should be for reproduction.

The results from this research could help infertile couple as we will understand the cascade of events which come into play when the sperm enters the female reproductive tract, we may be able to mimic or assist this with new therapies, encouraging tolerance of her partner's semen, for those couples who are experiencing difficulties becoming pregnant, says Professor Robertson.

The continuing study assesses women aged between 18 and 40 who have undergone a tubal ligation but are sexually active and in a stable relationship. In addition, they shouldn't be using contraceptives and their partners must not have undergone vasectomy. The research is funded by the Australian National Health and Medical Research Council.