What do you think? Pls help

Im just sp desperate and therefore so eager. AF is due tomorrow and im always like clockwork. There had been the odd occasions that i have AF has come early due to intense BD with the hubby. So yesterday when we were getting down i noticed i was bleeding. So figured i had started early. But it stopped straight away and hasnt come back since and its just soooooo unusual for me.
I hardly even feel like i have a period coming. I can always feel when im due. Cramping sore breats etc
Could i be ... PREGNANT??