Hi dear. In answer to your question if Vitex can bring on fertility I would say yes at least in my experience. I started taking vitex when my baby was about 3 months old. I decided to take it since I had been constantly spotting for two months. I was hoping it would regulate my hormones. I was not taking it to try and get pregnant but I was concerned about the constant bleeding. The vitex did seem to regulate my hormones as the spotting stopped and I started regular periods. I was taking my temps and I wasn't ovulating even with the regular periods. I didn't take my temps last month and apparently, I did ovulate and surprise I'm pregnant with number 5. My baby was almost 8 months old when I got pregnant. I've never gotten pregnant this soon so I do think the vitex had something to do with it. That's just my experience with it. But one thing I can tell that I take every decision after consulting the best Clinic in Ukraine, Lotus Clinic. It is best in any kind of pregnancy and motherhood problems. Hope I helped.