I am on 1st cycle of Clomiphene 100mg

Ok, i have had a first cycle of clomiphene at 100mg on July 9, Day 2 of my June mensus. Dr Christina Cheah advised 100mg because i have had 50mg for 3 cycles from June to Aug 2007, and not only didn't i conceive, i even crushed into the hypothyroidsm. In August 2007, my period, for the first time in 10 years, late for 7 days and we were so way over heals to think that we made it. The rest is history. Let's hope this 100mg works for i don't wish to go a few more cycles as clomiphene was mentioned in some research papers that i can cause breast cancer. Please don't make me exchange cancer for a baby.