I am 5 days late for my period, and my cycle is regular. I have very tender and swollen breasts, light stomach cramps that come one day for a short while then are gone. I also have constipation and lightheadedness or dizzinesse..I have never been this late and have all these symptoms. I also have had a milky clean discharge. I have IC and pancreatitis..i had a negative result from a home pregnancy test this morning, and i am still praying for a positive. Please tell me what this most likely is!!!! I am very emotional. Thanks!