Today you should try to think of something you can do that gets your partner excited. And then just do it

Glow

Your chances of getting her pregnant could be higher if the sex is good for her, too. Some researchers believe that female orgasm plays a role in sperm retention and conception (known as the "upsuck effect"); one study found that if a woman climaxes between up to 1 minute before and 45 minutes after her partner, it can lead to higher levels of sperm retention, influencing the likelihood of conceiving.

Source: Animal Behaviour