I've had 2 children already. I know people say every pregnancy is different. My last 2 I was able to tell with early home tests. My LMP was 7/20/10. I know I'm 2 days out. I feel wierd. throughout this last month I've felt tightening when I've gone on the eliptical which isn't normal. I've felt nausea sometimes, my hubby also noticed my boobs (areiola) getting bigger and "puffier", abdomen area is still sore (not cramping), my area down under has itched like crazy, a lot of fatigue, and not to sound gross but I've been gassy and constipated. Now for the last 2 days I've had a brownish discharge. My periods are pretty much to the month. 3-4 days before my period I have cramping and breast tenderness. Not this time. I've never had brown discharge with my periods let alone for two days. All tests, including a blood test (yesterday), have come back negative. So, if I'm not pregnant what else could it be? Or is it possible I might be?