Morning sickness is the norm of pregnancy, with around two thirds of women suffering through the unrelenting nausea and unpleasant vomiting. But women should not worry if they end up experiencing none of these horrid symptoms; rather, they should count their lucky stars that they are one of the lucky few who get to skip that part.

60 percent of all first trimester miscarriages will happen without any identifiable explanation. This can cause many women to blame themselves for the loss, which is normally unfounded.

During pregnancy, you might have body aches, heartburn, itching and tingling.

Changes in your cervical mucus can signal when you are fertile. After your period has finished, your cervical mucus gradually increases in amount and changes in texture. This change reflects the rising levels of the hormone oestrogen in your body. It also shows you are close to ovulating.

Some men have an immune reaction to semen, which causes them to produce anti-sperm antibodies that damage their sperm.

Sufficient follicle stimulating hormone action is also needed for proper sperm production.