Clomid

I am currently on my 2nd cycle of clomid. First cycle at 50mg did nothing, so the doctor increased my 2nd dose to 100mg this cycle. Me and my SO have been trying to conceive for 15 months now with no luck so I went to the doctor and she suggested I try clomid.

As the 1st cycle did nothing and now I am on my 2nd cycle Im just curious if any of you ladies have used clomid and did you have any sucess?

Also did it make you ovulate later or sooner than normal?