Hi. Sorry if this is the wrong place for this question but I need help. Okay so my last period started on the 14th of January. My cycles last 28 days and my periods are very heavy and last about 5 days. On the 7th, 8th, 9th and 10th of this month my partner and I had unprotected sex. My period was due on the 10th (6 days ago). My period is always on time like clockwork. Yesterday I had some spotting and by the end of the day it was a bit heavier. No where near as heavy as my period but more blood then I have read implantation bleeding is. I've also been having cramps not as bad as usual period cramps and I've been dead tired for the last few days. Could I be pregnant or is this just my period?