1 dot of blood and then nothing since yesterday?

Arynn

Yesterday I was expecting my period. I was two days late and I had been cramping and other pms symptoms for like four-five days. I saw a tiny dot of blood on the toilet paper which I probably wouldn’t have noticed if I wasn’t searching for it. That was 4 o’clock yesterday. 18 hours later there hasn’t been anything. Not even on the toilet paper. Wth is going on?