It's 3 days til my period today I woke up feeling so nauseous and sick. I went to the bathroom and had diarrhea. I peed and when I wiped there was very light spotting. So I thought I was starting my period and put a pad on. I have a headache, and light cramping and soooo tired. Every time I go to the bathroom there is nothing in my pad and nothing when i wipe anymore. Can this be implantation or period slowly coming. This is very unusual for my periods.