I've been taking the Nasal spray 2 times in morning and 2 times at night as prescribed. Still no sign of my period starting although i have had cramps on and off for a few days and tender breasts which as eased today. The nurse said I should have a period around my usual time which is in 2 days but It just doesn't feel like like the spray is doing anything. I've not had any major side effects luckily enough. Has anyone else had this spray and how did they find it? What will happen if my period doesn't start will this cycle be cancelled?