Please help. :/

So I'm about 3 or 4 days late and I don't know what's up I haven't been feeling like I'm going to start my period... I don't wanna have the hanky panky with my hubby when I usually do when we get a chance. I'm exhausted my breast and after I ate tonight I just felt sick to my stomach... I just feel weird and I want to get another's woman's opinion on what's going on.