I just put in an order of FertilAid. I'm on CD 51 and got a negative test today and in a depressed stuper I bought a bottle. I don't have any diagnosed infertility - No symptoms of endometriosis or PCOS; except for irregular periods. I believe it's a hormonal imbalance that prevents ovulation as I haven't noticed EWCM. I get watery CM for a few days, but never EWCM. I don't track BBT or use OPK's as my partner wants to "let it happen if it happens" until 2018. Then we'll switch to actively trying. We've been having unprotected sex for a year and two months now.