Negative test😭

Anon

My husband and I have not been trying, but I have been feeling achy and nauseous and I’m a few days late and so I took a test the other day, it came back negative. I didn’t realize how much I want to baby until I got the little blinking negative sign and now I’m just overcome by sadness, but I don’t know if maybe it’s a false negative if or I’m late just because. Help or advice would be great.