Help?

Savannah

My period is only a few days away, And I’m not cramping or even pmsing. Normally 4-5 days before, I get bad cramps to the point I can’t move, bad headaches and my back hurts .. but here I am with no sign that my periods coming. I’m not too sure what to think. Maybe I’m scaring myself ? Any ideas. Ps: I just had a baby 7 months ago