I am 19, I was due to come on my period 31st jan and I didn't. I was due on 27th feb and still nothing. Can anyone help or advise? I have found I have been extremely tired recently and I always need a wee. I also feel car sick often when I'm not even in a car. My boobs are much bigger and nipples are sore. My periods are usually really regular so this is odd. I took a pregnancy test today but it was negative? Someone please respond? Could I still be pregnant or would it show on a test by now? I feel very bloated and feeling emotional. I now have developed a cold - headache runny nose slight temperature. I had a blood test today and I will find out Thursday just wondered if anyone thought I am pregnant?