I went through a miscarriage in September when I was 6 weeks
pregnant.
Then I had my regular periods each 28 days. My periods are always regular (28-30 days).
But this month I didn't get my periods yet, mu due date was on Dec 10.
Surprisingly I didn't have sex last month, I am pretty sure that I mustn't be pregnant. But what might be the reason of the delay. I am really worried.