I am new here...currently on my 2nd round of IUI with clomid and gonal f. My first scan was last Friday and I had a few follicles but not mature size 12, 13 and 14 estrogen was 102. Today my follicles are 15, 15 and 12 but my estrogen dropped to 58. What does this mean? I am so confused and upset. Has this happened to anyone?