Is It Advisable To Undertake Hsg Test At The End Of Periods?

background -- 30 years old, irregular periods, bad cramping before and during periods, PCOS, 5'4', 140 lbs, I have an HSG test scheduled for tomorrow morning. Today I have very light spotting as I'm at the tail end of my period. Is it ok to get an HSG test tomorrow morning if there is very little spotting still occuring. I don't expect this, but sometimes my menstration will last slightly longer than normal.