Help with Ovulation bleeding!?

Nicole
Hello everyone!
 I need to get your opinion on my situation! My first day of my last period was February 5th, and ended on the 2nd. I experienced some spotting after that but not a lot. My ferility window was Feb 15th-Feb 19th. Me and my partner had intercourse the first 4 days of fertility and on ovulation day. 
2 days after ovulation i experienced mild cramping and spotting and spotted days after. Today February 22nd I am experiencing heavy period like bleeding(only this morning) But my period is suppose to be on March 2nd (I am always regular! Never early, never late) 
Any idea on what this means!?!? Thank you so much!