Question for the ladies?

I finally got an appointment with the rectal colon specialist on Monday and this is Friday morning and I think I started my monthly, Should I cancel or just use a tampon does i’t matter has anybody else ever had this issue this is for the ladies?

I had banding with my period and it was fine. Doctor said as long as it’s not heavy. May want to call to check your doctor may have a different policy

Thank you I did call and she tell me it’s just a consultation just to wear a tampon i just wondered