Miscarriage ?

Jessica

Went In for an ultrasound Friday but the dr said I’m in the process of a miscarriage my baby is measured at 6 weeks instead of eight and they couldn’t find a heart beat. Should i wait for a D and C, get another ultrasound, get a second opinion or trust my dr and go with the d and c that is scheduled for Tuesday if I do pass the baby myself. I just need confirmation ladies my heart is acting I have been waiting a year and half to even see a BFP