It can take some women 4-8 weeks for a period to return, some even longer, after a miscarriage. You could be pregnant, all you do is take another pregnancy test and see what it says. I'd wait another days before testing though just let hormone levels rise.
Some ladies on here have been very lucky and have become pregnant soon after a miscarriage and have had a healthy baby. If you say you are 5 days late i would take a pregnancy test again to see if it gets any darker. Although in my case i had a miscarriage at 14 weeks. And after my d&c i was still getting postive tests 2 weeks later. But then as the days went on i got negatives as there was no more hcg left in my body. Still waiting for my bfp 4 months later xxx