To me it sounds as though you are gearing up for your period. The light discharge could be telling you that you will start very soon. The cramping doesn't usually take place so early in pregnancy. Pretty sure that the cramping doesn't start until a little farther into the pregnancy, with the growth of the uterus. (atleast the cramping has never started that early in any of my pregnancies. Same for the backaches.) If it is four days after your missed period, and the test is still negative, I don't think that you are preggy this month.If your period doesn't start within the next few days, you might consider a pregnancy blood test, and or a visit with your doctor. Wanting a baby so badly, we women can often trick our minds into thinking " this must be it! I have all the symptoms, and my period is late" but really we are causing the symptoms with wishful thinking, and delaying our period with the stress of it. The mind is a very powerful thing, when you want something so badly. Possibly this isn't the case, for you. Here is some advice. If you aren't pregnant this month, take a deep breath, sit back and relax, and decide that when it happens, it happens. Wanting a baby so badly, and getting your hopes up and stressing over it every month, it can be so harmful not only physically from the stress, but emotionally, as we set ourselves up for heartache if it didn't happen this month. And it can put a strain on your relationship with hubby. Sex becomes a duty and a project. And when it doesn't happen, it feels like a disappointment, feels like you must be doing something wrong. It loses all of the beauty and awesome appeal, and instead of bring you and hubby closer, it can actually form a quickly widening gap. I understand how you feel. I set myself up for heartache over nad over every month for at least 8 months. I bought an endless amount of pregnancy tests, and was heartbroken when they came up negative. When I finally decided that it would happen when the time was right, and not a moment before, and I would just enjoy the ride, that is when I got pregnant. It took us a year. So don't get discouraged. Maybe this is your month. But if it isn't, just think of it as a to be continued. Best of wishes, and let me know what happens.