I had unprotected sex on New Year's Eve and the following morning. I had a regular period starting on Jan 24th and ending on Jan 28th. I felt fine until last week. All week I felt extremly nauseated when I would wake up in the morning. Usually the nausea would subside after eating lunch..I have also been having A LOT of clear discharge..almost to where I feel like I'm wetting myself. At the beginning of January I was on antibiotics for a yeast infection. Anyway, I have also noticed I've been eating a lot of oranges lately, and then today I noticed some cramping on my left side, and right now I feel EXTREMLY sick. We went to eat dinner and I couldn't even eat half. My friends suggested I could be pregnant, depsite my normal period. I think it could be something else..any ideas??