Ttc and Clomid

Dijana
Hi all,
Just wondering any ladies on here using Clomid? How many cycles did you use before conceiving. 
I have used 2 cycles of it at 100mg and nothing my dr has done my levels and no oviapyion occurring. Now the dr wants me on 150mg. It's frustrating I've been trying for 15 months everyone around me is getting pregnant except me