Okay. I'm 19, been TTC for about 3 months now. My periods have always been fairly regular. AF was due on the 7th. I have never been late. Early, yes. Late, no. I am now 3-4 days late (4 if you count the 7th). I tested this morning and it was a bfn but I can feel that I may be pregnant. Sore/swollen breasts, nausea, increased appetite, constant exhaustion, increased urination...I just don't understand...