Do you use a trigger with clomid?

S
My doc doesn't really want to give me one. I'm unsure as to why (I have an appointment today) and it sounds like he would rather me ovulate naturally. 
I want the trigger and he will prescribe it but mainly want it because 1.  I ovulate late and 2. I want ALL viable follicles to ovulate. Not just one. 
Any insight? X