i dont know

soooo my period ended on saterday and was sepose to start saterday soo it was early but any my period ended and then yesterday me and my fiance had been fighting and I got this sharp pains on my belly and I started bleeding again it only last for like an hour and it went away and today I have light bleeding it looks like water mixed with blood... do anybody thing I should worry about it or is it just my hormones or stress

P.S this has never happend to me