hi,My cycle is normally every 28 days and I am 4 days late. I had several symptoms including freq urination, gas, sore breasts, exhaustion, cravings, headaches and increased discharge. I took a HPT this morning when I woke up and it came back negative. I am now experiencing a sharp pain in my side that comes and goes, along with pink vaginal discharge. Is this something I should be worried about? And is there a possibility that the HPT result is false? HELP