Confused

Jessica
I had a miscarriage at 6 weeks in October and we got pregnant our first month, so I'm not too concerned about being able to conceive again. My cycle has been refular ever since, but this month I am late 2 days which I never am and I've taken two tests and both BFN. Do you think I could still be pregnant or just a late AF?
Thanks Guys! I am only 26 and me and hubby are new at all this!