Period at Postpartum appointment

Ka

I have my 6 week postpartum appointment in two days and I just started my period and it’s extremely heavy. I’m sure they don’t care but my question is do I go in wearing a tampon or a pad ? I hate pads so much and I’m technically 7 weeks postpartum so I’m allowed to insert a tampon. I’m getting an iud so I’m assuming I go in with a pad and just let them know I’m on my period? I’ve never been to the doctor while on my period.