Have anyone experienced this....

Okay my period was due this week . Tomorrow will make it 35days. Since last week I’ve been having back cramps(I’m having it now) . This week I’ve had discharge so I run to the bathroom thinking ok here she is but it’s only creamy discharge. Yesterday I was cramping on one side and didn’t feel like eating. This morning I was sure she coming so I ran to bathroom and sat there. Since usually she comes in the morning when I pee . I wipe still creamy discharge. Am I the only one going through this? I took pregnancy test it was negative but I feel like it’s early since my monthly’s 28-33 days.