Tenaculum question

Ali
This lovely little instrument was used on me today for my HSG us. It is basically an ugly looking claw that grabs ur cervix to hold it in place. I have been bleeding ever since my procedure. Not spotting like they said but full on heavy menstrual period. Awful cramps with it. Has anyone had this used? And How long did your bleeding last? Just wondering and couldn't find info online about it.