I started taking it when ttc dd and I got preg that month . Not sure if it helped or just coincidence (I hadn't been trying too long) I started again and got a bfn last month (although we weren't able to try as hard as I would have liked due to dh being gone on day of ovulation) and this is my second month on it. I'm only 5 dpo so not sure yet. I take the geritol complete. Honestly there is no reason not to try it. It is just a regular vitamin- no herbs or anything in it, and it is really cheap compared to prenatals. I take an additional b-complex vitamin, but really the only thing you would want to do is take a little extra folic acid because geritol does not have as much as the prenatals do. Good luck!