One procedure a doctor can perform is to test the cervical mucus. Cervical mucus plays an essential role in conception, as it enables the sperm to make it all the way to the egg. The sperm are unable to do this if there is little or no cervical mucus present. Another factor involving cervical mucus is that it could be too acidic. It is necessary for the mucus to be alkaline. If it is acidic, it will kill the sperm before they reach the egg.
When a doctor checks the cervical mucus, he/she will look at the whether it is clear or curdled. If it is curdled, there is little to no chance of conception. If the mucus is clear and somewhat sticky, chances of conception are good.
Before you start to think about the possibility that you or your partner might be infertile, make sure that you have been having unprotected (natural method) sex over a number of months, or up to a year. Conception can take a long time, even for couples who have no troubles with infertility. Often, a couple may have unprotected sex for 8 or 10 months before conception takes place.
Once you have given yourselves this waiting period, if conception still has not occurred, visit your doctor for what steps you should take next. Try not to worry - focus on the many tests and procedures available to help you and your partner become parents of a beautiful baby.