While we don't know a lot about CBD and Fertility here's what we do know....
Once you start taking a CBD supplement you begin to gently activate your endocannabinoid system. In turn this system regulates the physiological processes like fertility & pregnancy. Additionally a 2012 study also linked the endocannabinoid system with increased female sexual arousal. There are cannabinoid detectors in sperm like the GPR18 which was discovered to activate sperm cells & improve their chances of fertilizing an egg. Not to mention their is receptors in the female reproductive tract which has been shown to cater to the ovarian system while regulating the follicle maturation. All of these processes tie directly into fertility in men & women. There's also discussion on how the ECS & female reproductive system can effect PCOS. Sadly there's still not published research but if you're trying to get pregnant you need all the help you can get.
Another thought is how a deficiency in the endocannabinoid system can cause low levels of anandamide which can interfere with ovulation or the ability to get pregnant. CBD can boost those levels through inhibiting the breakdown of the enzyme FAAH.
Stress can also effect men and women enough to inhibit the fertility process. CBD activates the serotonin receptors as well and boost the mood of either parties.
We always encourage you to do your own research but it was interesting to see the ties between each system in your body.
Here's an in depth history on Cannabinoids and Reproduction from the US National Library of Medicine National Institute of Health.