I’m having some trouble with haiz. These days I’ve noticed yellow discharge sometimes one week prior to my periods. Is that istihaza or pak? The yellow discharge is bright with creamy features too. What’s the ruling on this? How do I know it’s blood or not to me it looks like creamy discharge

Discharge before one's menstrual cycle which has no continuity is not hayz.

By continuity I mean that at no point during the day is the person paak from discharge. Hence if your discharge comes and goes then it is not hayz.

In regards to it being istihadha, if you are sure that there is blood in the discharge then it is istihadha but if you have a doubt then that discharge is considered paak