I am trying to conceive since last 3 months but I was in stress due to some personal issues for last 2 months.My doctor did 3 letrozole cycle(3months) with me and everything was fine like egg size and endometrial thickness too and now she suggested me for IUI.I want to conceive naturally so this month I took break from this and planning for natural pregnancy.I did the follicular study on Day9 and egg size is 21*17 mm with 7.3 mm thickness and I am not taking any medicines as of now.Please let me know should I take Hcg injection for egg rupture? As my egg normally rupture on its own?