We did it for DS2 and it worked. I realised that I get EWCM before I O and the day after the EWCM is gone, I get O cramps. So when TTCing we only DTD on the day that I had the cramps and then held my breath until the morphology scan LOL. In hindsight, when we were TTC 2 and 3, we DTD from the middle of my cycle until after EWCM had gone and we got the two girls, so I'm assuming that because I O after the EWCM, that doing what we did was possibly why we got the girls. We didn't do any diets or anything like that at all for any of them.