This is just my exp of course, but it is totally up to you which way you feel you would like to go. Clomid did not change the length of my cycles, it was still 35-40 days. I had a lot of stomach discomfort, and a the time we were supposed to DTD, I was way too sore!!! My cycles were perfect, on the FSH injections, (with the IVF cycle). I HTH a bit!!!