6 days late, negative test and minimal bleeding

Hi everyone. I'm a bit confused. Today is the 6th day I'm late. I took a test the day before yesterday and it was negative. That same evening I had white discharge with tiny streaks of blood. But very minimal. So I thought my period would start. But it didn't. Nothing yesterday until evening. Then I got a cramp. Usually that's when it starts. But then I had a very tiny drop of clear blood. Still nothing from my period and no more blood either. Took another test but it was negative again. Otherwise I just feel more tired, more irritable and my breasts hurt. Hopefully someone here has experience with this or can give me some advice. Greetings