Could I be pregnant?

I had a miscarriage in November 6. A month after we started trying again. I took a pregnancy test before we started trying again to make sure my Hcg was gone. Now a little over two months later, I've been feeling nauseated and cramping and super emotional so I took this and it came out positive. But my period isn't due until the 19th? Just hard to let myself get excited after our loss but if this true I'll be beyond happy!!