I would go get blood work done to see if ur pregnant or what is going on. I lost a baby in dec and it took over a month for my hcg levels to drop to 0 , my doc was very shocked they kept testing my blood over n over bc they weren't dropping
You will not start your period till your hormone levels get to below a 5. When I had my d&c, I had a positive test for over 8 weeks. It's possible you could be pregnant but it's most likely old hormones from the previous pregnancy.
Ny last miscarriage my hormone level was still around 450 after two months. Call your doctor and have blood work done. It takes a while for levels to drop completely