I had unprotected sex with my boyfriend for a week (november 9-16). I was supposed to start my period on December 1st but didn't. Nurse friend told me it was probably due to stress and that irregular periods are normal. December 7th I started getting an awkward nauseous feeling. I wake up and have it ALL DAY LONG ever since. I have a loss of appetite and have a weird period. I thought it was my period but its a different blood. Not the brown I've been reading about but just a milky red instead of normal red and its so light that I only have it when I pee or wipe. I've also had a headaches but they aren't normal ones. They're like stuffy head ones. Anyways. I have a sneaking suspicion i might be pregnant, but also a sneaking suspicion that I'm not. If I'm not pregnant what else could this be and how long is it gonna last cuz its getting on my last f*****g nerves. Thanks!