I haven't taken either and have been interested. Found this online (it's a bit long!):
Evening Primrose Oil (EPO) - But women who are actively trying to conceive may be more interested in the link between evening primrose oil and pregnancy. Evening primrose oil is thought to work by improving the quality of the mucus lining the cervix. This mucus lining obviously plays a vital role in pregnancy by preparing the way for the fetus, and the impact of the vitamin E and gamma linolenic oil in evening primrose oil seems to play a positive role in this process.
Evening primrose oil is thought to help women produce more cervical mucus, which in turn aids the sperm on its journey toward the waiting egg. The type of cervical mucus evening primrose oil helps to produce has been shown to increase the survival rate of sperm, and therefore increase the odds of a successful pregnancy.
Many fertility experts recommend that women who are actively trying to get pregnant take evening primrose oil from the first day of their menstrual period through ovulation. From ovulation until the onset of the next period, that evening primrose oil can be replaced with flaxseed oil. Once those women become pregnant, they can continue taking flaxseed oil until the 34th week of pregnancy, then switch back to evening primrose oil to aid in delivery. The extra gamma linolenic acid in the evening primrose oil can prepare the cervix for delivery and make childbirth more comfortable for mother and baby alike. The evening primrose oil should be taken orally, as this gives it time to dissipate throughout the body and be absorbed gradually.
Royal jelly with bee pollen - Royal jelly is said to improve fertility in women. Royal jelly, a modified bee pollen, is basically a "bee fertility" substance given to the queen bees so that they'll produce more bees. So does it work in humans?
While there is much anecdotal evidence by women on the Internet who say royal jelly improved their fertility and led to pregnancy after other methods failed, there isn't much scientific research on royal jelly.
However, Bogdan Tekavcic, a Yugoslavian gynecologist, found that women given bee pollen with royal jelly saw an improvement or disappearance of their menstrual problems, while the control group who did not take the royal jelly saw no improvement in their symptoms.
It is believed that royal jelly increases the health of eggs as well as improves a woman's overall reproductive health by reducing inflammation, increasing libido, and keeping the reproductive organs "young."
If you decide to try royal jelly to improve your fertility, be aware that it can cause serious allergic reactions in people who are allergic to bees or honey.
but can take up to 3 months for benefits to be seen. We take capsules which have 150mg of royal jelly in them. 
