Confused!!

Hey y’all! I’m supposed to start my period tomorrow but wanted to know if anyone else experienced this. Around 5pm today I went to the bathroom and there was blood like I was on my period so it was a darker red, three hours later no blood and it’s only light pink when I wipe. I’m having some cramping but in my lower ovaries.. help I’m confused. It could be my period starting early but it would have still been red and a lot of it by now. Thanks in advance!!