Has anyone else had a slow response to the nasal spray??

I am on on 2nd IVF cycle at Monash now and their cycles are different to MIVF. MIVF I was on a two month cycle, Synarel for one month - then start injections etc - I had no problems.

This time it was suppose to be only one month and I seem to be taken a long time to react to the Synarel this time - I am already been on it three weeks longer than I was suppose to be.

Has anyone else this experience?? And what did you do?