Chemical pregnancy/miscarriage

Kita

I’m seeking advice because I’m not sure if I’m experiencing a chemical pregnancy/miscarriage or not. My normal period comes on every 26 days. This month (September) I was 4 days (Sept.6th) late. When it came on it was heavy. It lasted 5 days and went off. I woke up this morning (Sept.20) to my period being back on. This one is heavy as well. It was all over my clothes when I woke up. Could I be experiencing an early miscarriage? I took a pregnancy test this morning and it was negative but I’ve never had another period come on 11 days after the previous one. I’m also cramping and feel sore everywhere.