Was it a chemical pregnancy???

Mayra
So i got 5 positive pregnancy test at home went to the ER for bad cramps i had a feeling something wasn't right. I had a miscarriage 2 months before at 12 weeks. So during my ER exam urine test came back negative they did blood work and my hcg level was 2 so it was considered negative by that time i was already bleeding. I had for 6 days heavy bleeding which seemed like my period but much heavier and also was like a week late. Could it have been a chemical pregnancy? The pregnancy test tested positive but very faint.