So we have been trying to conviene since May of this year. July 14, 2015 I started my period and it was a my normal 5 day length, same amount of flow as always. I was supposed to start my period August 11, 2015.. it is now August 18, 7 days late and still no sign of a period. I usually get a backache when I'm close to starting my period but this month nothing at all!! My breasts and niples are sore. & have a bit of bloating & slight to almost no crampinh, but that's all. Haven't really done anything different with eating, excersice or any different routine. Not stressing about becoming pregnant. If it happens it's my time. But never really stressed or obsessed with it. I have taken 4 tests and all negative. Could i still be pregnant? I'm using rite Aid and dollar tree tests. As I'm not really wanting to spend too much if I'm just gonna get a negative.