I have a concern of a possible pregnancy? I had unprotected sex while I was intoxicated about 2 weeks ago and I didn t use protection and I m not on any kind of birth control. The last few days I ve been feeling very weird. For example, I have really bad headaches,backache, nausea,lack of appetite,cramps. Does it sound like I m pregnant from the symptoms? My period isn t for two more weeks so I m just concerned now thank you.