The endocannabinoid system (ECS) is the basis for all the ways in which CBD, a natural plant cannabinoid that mimics the human body's endocannabinoids, contributes to health and well-being. Endocannabinoid receptors have been found in sperm and in the female reproductive system, leading to the belief that CBD can be a natural way to increase fertility with minimal negative side effects. A study examined a group of 84 CBD products and found that in 43% of them the dose of CBD was higher than what the label said, and 26% had a lower dose than indicated on the label. This lack of regulation has caused the purity of CBD products to come under scrutiny.
Swiss research suggests that exposure to CBD in male fetuses may cause problems with testosterone and sperm. However, much remains to be learned about the ECS and its role in fertility and reproduction, as well as about how the use of CBD affects these things. CBD is classified as a supplement, which means that the regulations on its quality and production are very flexible and have few supervisory laws. The reason why CBD is not psychoactive is because the atoms that make up its molecular structure are arranged differently from those of THC.
As a senior herbalist, I can say that there is no research that draws a straight line from taking soft CBD capsules daily to improve fertility. However, there is reason to believe that it may offer health and fertility benefits before conception and it may be OK to use it while trying to conceive.