I dont know if im pregnant or just sick. I have sore nipples that hurt like crazy, keep getting nauseous a lot (threw up after I heard the word lemonade so many times), keep having chills and feeling hot. Also i have lots of headaches and lots of clear discharge coming out. I took a pregnancy test it came out negative but say if I am pregnant what test should I take to get best result. Tomorrow would be a week since I had sex and have missed my period. I think I had sex on my fertility days so just would like help.