Missed period

Brittany
So last month I started lightly spotting 2 days before my actual period. And per the app, I was supposed to start on Tuesday. As of now, i feel like AF is coming but isn't. I took a test this morning and it was a BFN. I'm tired and feeling nauseous with cramping. I also had a miscarriage 3 months ago so could I be pregnant? My husband and I really want a baby on earth with us. It's so hard waiting! Any thoughts?