Okay I am posting this query hoping to get a better explanation. 19th nov was the start of my last period and ended on 23rd. I had unprotected sex on 23rd but by 11th dec I noticed early signs of pregnancy. Nausea subsided and my appetite is back to normal but my breast hurt a lot. I have taken pregnancy test resulting negative on 16th and on 22nd. Kindly explain what is wrong. I am very stressed.