My periods are like clock work.. I'm not due to have a visit from my monthly friend for another 5 days yet.. last night I had minor cramping on one side, some lower back pain, and tender breasts.. This evening I started spotting... at first I thought I just got my period early... but both tampons I've used have very very little on them. When normally with a period I'm filling a tampon every hour and have unbearable cramps... my fiance and I did have intercourse 3 times while ovulating, could this be implantation spotting?? It's been 10-14 days since ovulation/intercourse days..