I am so confused. My boyfriend and I have unprotected sex. We use the pull out method. I noticed that we had sex during my fertile days. I have been having mild cramping, frequent urination, white discharge that smells funny. My boobs are also sore. My period is due in 4 days and I usually start to have bad cramps, but I haven't had anything. Oh yea and when I eat certain things or eat at a certain time I get really nauseous. Please help me. I'm not sure if I should be worried.