Pregnancy, thyroid disease and a recent miscarriage

Natasha

Well I recently had a miscarriage about 7 months ago. And now I think I'm pregnant again. I still have no positive pregnancy tests but I'm only 5 days late (and my period is never late like this). But I'm having nausea, cramping, dizziness, no spotting, a strong sense of smell, fatigue but no tenderness in my boobs. Could I be pregnant or is my period skipping a month?