Hi Sonya,

Just want to reassure you that no side effect doesn't mean its not working...I had puregon on 150iu and had absolutely no side effect at all...but my FS said I responded really well with the drugs and I ended up having 15 eggs retrived and 10 fertilized ...I did remember at the time I had same question in my head though but all turned out fine...

So don't worry and just be happy you are one of those lucky ones!