Ok, well, you should wait until about 5 days after your missed period to get an accurate result on a pregnancy test. I waited until 2 weeks after I missed my period because I figured it was late just because of stress, which can happen. As for the nausea, headaches, cramping, and backaches - all of this could be in your head. A lot of women can be late on their periods even if they have normal cycles. Try to relax and not psych yourself out. I'd suggest taking a Clear Blue digital read out test. They come with two in a box and they are the most accurate. If that test is negative, then wait another week and see if your period comes. But definitely don't get yourself too worried over it because it could be a bunch of different things. However, you should sustain from smoking, drinking or anything else you do that could harm the baby - if there is one. The first few weeks of life are crutial. Good luck!<br><br>Post edited by: Julie, at: 2005/09/20 01:29