help I'm confused

Markeita
Ok I don't know what's going on kinda confused I suppose to came on dec 6 but have not seen my period my last period was nov 8 had sex when my husband came home on nov 16 I suppose to come on my period dec 6 and y are my breast sore wen normally wen I'm about to come on I feel cramping I need help with this back in sept I had a ectopic pregnancy as well