Hey mama, nakikita ko ang worry mo, ang spotting na nakita mo last week could be part of your body's way of regulating after the D&C, kaya hindi ko ma-rule out na yan na ang simula ng period mo, pero the fact na delayed pa rin siya by almost 3 weeks ay worth checking with your OB ulit, especially to make sure everything's healing properly. A few of us went through miscarriage din, at ang bodies namin ay nag-adjust sa different timelines, one friend's period came after 6 weeks pa lang, pero others took 2-3 months, so honestly it varies talaga. I'd really suggest going back to your doctor para sure lang, kasi sometimes hormones take longer to reset or may retained tissue pa, at better to be checked than worry lang. Hugs, sis, this is a heavy time.