Starting at the beginning I had unprotected sex with my boyfriend using the withdrawal method on the 22nd Dec, and again on the 22nd Feb and the 5th March. Over the past week I've been experiencing hot flushes where I've been feeling sick and I've had to leave my college classes that I've been in. I've been feeling extremley tired and have had waves of sickness. I've been feeling unbelievaly tired, and just coming in and falling asleep for 3 hours at a time, then waking up and going straight to bed for 10/11 hours and waking up like I've never been asleep! Along with a banging headache, the lower of my back has been aching, i just seem to feel hot all the time! and I just don't know what's wrong with me? It's probably not even pregnancy, but my periods have been sort of normal, my last one lasted only 4 days which is suprising for me as they usually last dead on 5/6 days. Although it was heavy for two days then the next two days it was more of just a browny discharge. I've been reading other people's stories of how they've had period while being pregnant, then other people saying it's impossible.. i'm becoming very confused! I've got a doctors appointment so I'll see what's wrong with me then, I just wanted to see if anyone else had gone through the same thing :-)