Cervical check bleeding

Mo

I had a check yesterday and didn’t bleed at all. Today I had a tiny amount of bright red blood. I’m assuming it’s new blood since it’s bright red?? Or could it be from the check yesterday? Last time I had a small amount of blood I went into preterm labor (this pregnancy). So I’m already 4cm dilated and now don’t know if this is the start of labor again or just irritation. I hate that everything is so wishy washy in pregnancy. Could be normal, could be labor, etc.