So I was due on a period the last few days in November about the 29th-2nd December yet it never came. We are on 4th January and still no period. I had a tiny drop of blood on Christmas morning but nothing after it was very watery and I thought it was my period starting as I had some backache and tender breasts leading up to that day. This is unusual for me as I am very regular and I tend to have heavy periods that last 4 to 5 days..... after that one drop of blood iv had no more. I keep feeling sickly and nausea and a bit of heartburn that I never get. Iv now taking taking 4 tests from different brands I took my first test about 2 weeks after my missed period one 2 weeks after that and one just before Christmas and one tonight yet there all negative. I find it hard to get to a GP due to work hours and work not allowing time out of work for doctors hospital or dental appointments unless it is an emergency. I just want to know what's happening to me. I keep freaking myself out. What if iv gone through the change at 25 or what if i am pregnant but it's growing in the tube and that's why I get a negative. I was not trying for a baby but I'd rather know now as I am a smoker and I have stopped the last weeks just in case I am and I had to lie to family and friends why I have not had drinks over Christmas and I don't want to say to them I think I'm pregnant until I know for sure.