first round of clomid done

So I started my clomid on cd8 because of my extremely irregular cycles. I had an US on day 16 and had 4 follicles (2x13mm and 2x10mm) with my lining at 5mm. I then had another scan yesterday (cd18) and it showed 5 follicles (1x20mm, 1x17.5mm, 2x13mm and 1x10mm) with my lining at 7.4mm. I also had the hcg trigger shot too. Had anyone had these sort of figures and the shot and managed to get pregnant first time without IUI as were only using Clomid at the moment and without IUI?